Term
Causes of Increased Anion Gap Metabolic Acidosis |
|
Definition
MUDPILES
Methanol
Uremia
DKA
Paraldehyde or Phenformin
Iron Tablets or INH
Lactic Acidosis
Ethylene glycol (oxalic acid)
Salicylates |
|
|
Term
What are the common causes of DIC? |
|
Definition
STOP Making New Thrombi
Sepsis (gram neg)
Trauma
Obstetric complications
Pancreatitis (acute)
Malignancy
Nephrotic syndrome
Transfusion |
|
|
Term
Which antibiotics are the Beta-lactamase inhibitors? |
|
Definition
CAST
Clavulanic Acid, Sulbactam, Tazobactam
These are often added to penicillin antibiotics to protect the antibiotic from destruction by beta-lactamase |
|
|
Term
Which reactions is NADPH used in? |
|
Definition
1. Anabolic processes 2. Respiratory burst 3. P-450 4. Glutathione reductase |
|
|
Term
What does the pyruvate dehydrogenase complex consist of? |
|
Definition
1. Pyrophosphate (B1, thiamine; TPP) 2. FAD (B2, riboflavin) 3. NAD (B3, niacin) 4. CoA (B5, pantothenate) 5. Lipoic acid |
|
|
Term
What can cause Pyruvate dehydrogenase deficiency and what are the findings?
What are the only purely ketogenic amino acids? |
|
Definition
congenital or acquired (as in alcoholics due to B1 deficiency), the findings are neurologic deficits, treat with inc. intake of ketogenic nutrients (e.g. high fat content of inc. lysine and leucine)
Lysine and Leucine |
|
|
Term
What are the essential amino acids and which are glucogenic, ketogenic or both? |
|
Definition
Glucogenic: Met, Val, Arg, His Glucogenic/ketogenic: Ile, Phe, Thr, Trp Ketogenic: Leu, Lys |
|
|
Term
Which amino acids are acidic and which are basic? |
|
Definition
Acidic: Asp and Glu (negatively charged at body pH)
Basic: Arg, Lys, and His (Arg is the most basic) |
|
|
Term
Von Gierke's disease
1) Findings 2) deficient enzyme |
|
Definition
1. severe fasting hypoglycemia, increased glycogen in liver, inc. blood lactate, hepatomegaly
2. Glucose-6- phosphatase |
|
|
Term
Pompe's disease
1. Findings 2. Deficient enzyme |
|
Definition
1. Pompe's trashes the Pump (heart, liver and muscle) cardiomegaly and systemic findings leading to early death
2. Lysosomal alpha-1,4-glucosidase (acid maltase) |
|
|
Term
Cori's disease
1. Findings 2. Deficient enzyme |
|
Definition
1. milder form of von gierke's disease with normal blood lactate level, gluconeogenesis is intact
2. Debranching enzyme |
|
|
Term
McArdle's disease
1. Findings 2. Deficient enzyme |
|
Definition
1. McArdle's = Muscle increased glycogen in muscle, but cannot break it down, leading to painful muscle cramps, myoglobinuria with strenuous exercise
2. Skeletal muscle glycogen phosphorylase |
|
|
Term
Fabry's Disease
1. Findings 2. Deficient enzyme 3. accumulated substrate |
|
Definition
1. peripheral neuropathy of hands/feet, angiokeratomas, cardiovascular/renal disease
2. alpha-galactosidase
3. ceramide trihexoside |
|
|
Term
What is the inheritance of Lysosomal Storage diseases? |
|
Definition
All are autosomal recessive except Fabry's disease which is X-linked recessive |
|
|
Term
Gaucher's disease (the most common lysosomal storage disease)
1. Findings 2. deficient enzyme 3. accumulated substrate |
|
Definition
1. Hepatosplenomegaly, aseptic necrosis of femur, bone crises, Gaucher's cells (macrophages that look like crumpled tissue paper)
2. Glucocerebrosidase
3. Glucocerebroside |
|
|
Term
Niemann-Pick disease
1. Findings 2. deficient enzyme 3. accumulated substrate |
|
Definition
1. Progressive neurodegeneration, developmental delay, cherry-red spot on macula, lysosomes with onion skin, no hepatosplenomegaly (vs. Niemann-Pick)
2. Hexosaminidase A
3. GM2 ganglioside |
|
|
Term
Krabbe's disease
1. Findings 2. deficient enzyme 3. accumulated substrate |
|
Definition
1. Peripheral neuropathy, developmental delay, optic atrophy, globoid cells
2. beta-galactocerebrosidase
3. Galactocerebroside |
|
|
Term
Metachromatic leukodystrophy
1. Findings 2. Deficient enzyme 3. accumulated substrate |
|
Definition
1. central and peripheral demyelination w/ ataxia, dementia
2. arylsulfatase A
3. Cerebroside sulfate |
|
|
Term
What are the 2 mucopolysaccharidsoes and how do you distinguish between the two? |
|
Definition
Hurler's syndrome and Hunter's syndrome
Hunters see clearly (no corneal clouding) and aim for the X (X-linked recessive) |
|
|
Term
Which ketone body does a urine test for ketones detect? |
|
Definition
|
|
Term
What are the body's energy sources in the following stages? 1. Fed state (after a meal) 2. Fasting (between meals) 3. Starvation (days 1-3) 4. Starvation after day 3 |
|
Definition
1. glycolysis and aerobic respiration, insulin stimulates storage of lipids, proteins and glycogen
2. Hepatic glycogenolysis (major); hepatic gluconeogenesis and adipose release of FFA (minor)
3. Hepatic glycogenolysis, adipose release of FFA, muscle and liver which sift fuel use from glucose to FFA, Hepatic gluconeogenesis from peripheral tissue lactate and alanine as well as from adipose tissue glycerol and propionyl CoA
4. Adipose sotres (ketone bodies become main source of energy for the brain and heart). |
|
|
Term
What is the function of the following Major Apolipoproteins?
1. E 2. A-I 3. C-II 4. B-48 5. B-100 |
|
Definition
1. mediates remnant uptake
2. activates LCAT
3. lipoprotein lipase cofactor
4. mediates chylomicron secretion
5. binds LDL receptor |
|
|
Term
Abetalipoproteinemia
1. mechanism of deficiency 2. findings |
|
Definition
1. hereditary inability to synthesize lipoproteins due to deficiencies in apoB-100 and apoB-48. Autosomal recessive
2. failure to thrive, steatorrhea, acathocyosis, ataxia, night blindness |
|
|
Term
Which bugs do not Gram stain well? |
|
Definition
These Rascals May Microscopically Lack Color
Treponema (too thin to be visualized)
Rickettsia (intracellular parasite)
Mycobacteria (high lipid content cell wall)
Mycoplasma (no cell wall)
Legionella pneumophila (primarily intracellular)
Chlamydia (intracellular parasite; lacks muramic acid in cell wall)
|
|
|
Term
Special culture media for H. influenzae |
|
Definition
Chocolate agar with factors V (NAD+) and X (hematin)
|
|
|
Term
Special culture media for N. gonorrhoeae |
|
Definition
Thayer-Martin (or VPN) media - Vancomycin (inhibits gram positive organisms), Polymyxin (inhibits gram negative organisms), and Nystatin (inhibits fungi); "to connect to Neisseria, please use your VPN client" |
|
|
Term
Special culture media used for B. pertussis |
|
Definition
Bordet-Gengou (potato) agar |
|
|
Term
Special culture media for C. diphtheriae |
|
Definition
Tellurite plate, Loffler's media |
|
|
Term
special culture media for M. tuberculosis |
|
Definition
|
|
Term
Special culture media for M. pneumoniae |
|
Definition
|
|
Term
special culture media for Lactose fermenting enterics |
|
Definition
Pink colonies on MacConkey's agar (fermentation produces acid, turning plate pink); E.coli is also grown on eosin-methylene blue (EMB) agar as blue-black colonies with metallic sheen |
|
|
Term
special culture media for Legionella |
|
Definition
Charcoal yeast extract agar buffered with cysteine and iron |
|
|
Term
special culture media for fungi |
|
Definition
|
|
Term
Which bugs are obligate aerobes? |
|
Definition
Nagging Pests Must Breathe
Nocardia, Pseudomonas aeruginosa, Mycobacterium tuberculosis, and Bacillus
|
|
|
Term
Which bugs are obligate anaerobes? |
|
Definition
Anaerobes Can't breathe air
Clostridium, Bacteroides, and Actinomyces
They lack catalase and/or superoxide dismutase and are susceptible to oxidative damage |
|
|
Term
Which bugs are obligate intracellular? |
|
Definition
Stay inside (cells) when it is Really Cold
Rickettsia, Chlamydia
These can't make their own ATP |
|
|
Term
Which bugs are facultative intracellular? |
|
Definition
Some Nasty Bugs May Live FacultativeLY
Salmonella, Neisseria, Brucella, Mycobacterium, Listeria, Francisella, Legionella, Yersinia pestis
|
|
|
Term
Which bacteria are encapsulated? |
|
Definition
SHiN SKiS (group B)
Streptococcus pneumoniae, Haemophilus influenzae type B, Neisseria meningitidis, Salmonella, Klebsiella pneumoniae, group B Strep |
|
|
Term
What are the catalase-positive organisms? |
|
Definition
You need SSPACE for your cats
S. aureus, Serratia, Pseudomonas, Actinomyces, Candida, E.coli |
|
|
Term
|
Definition
PUNCH-K
Proteus, Ureaplasma, Nocardia, Cryptococcus, H.pylori, Klebsiella
|
|
|
Term
Novobiocin in Staphylococci |
|
Definition
On the offices's staph retreat, there was NO StRES
NOvobiocin - Saprophyticus is Resistant ; Epidermidis is Sensitive |
|
|
Term
Optichin and alpha hemolytic Streptococcus |
|
Definition
OVRPS (overpass)
Optochin - Viridans is Resistant; Pneumoniae is Sensitive |
|
|
Term
Bacitracin and beta hemolytic Streptococci |
|
Definition
B-BRAS
Bacitracin -- group B strep are Resistant; group A strep are Sensitive |
|
|
Term
What are some of the manifestations of rheumatic fever? |
|
Definition
No "rheum" for SPECCulation: Subcutaneous plaques, Polyarthritis, Erythema marginatum, Chorea, Carditis |
|
|
Term
What are the ABCDEFG's of Corynebacterium diphtheriae? |
|
Definition
ADP ribosylation
Beta-prophage
Corynebacterium
Diphtheria
Elongation Factor 2
Granules |
|
|
Term
What are some of the spore-forming gram-positive bacteria?
1) found in soil
2) Others |
|
Definition
1) Bacillus anthracis, Clostridium perfringens, C. tetani
2) B. cereus, C. botulinum, Coxiella burnetii |
|
|
Term
1) What is the main purpose of autoclaving?
2) At what phase of bacterial growth are spores formed? |
|
Definition
1) killing bacterial spores
2) formed at the end of the stationary phase (when nutrients are limited) |
|
|
Term
Which drugs do you use to treat Nocardia vs. Actinomyces? |
|
Definition
SNAP:
Sulfa for Nocardia
Actinomyces use penicillin
Actinomyces and Nocardia are gram positive rods that form long branching filaments resembling fungi |
|
|
Term
What is a Ghon complex composed of? |
|
Definition
TB granulomas (Ghon focus + lobar and perihilar lymph node involvement). Reflects primary infection or exposure. |
|
|
Term
Which bacteria are spirochetes? |
|
Definition
BLT. B is Big
Borrelia (Big size), Leptospira, Treponema |
|
|
Term
Which organism causes Weil's disease and what are the manifestations? |
|
Definition
Leptospira interrogans (question mark-shaped bacteria)
Weil's disease is also called icterohemorrhagic leptospirosis - severe form with jaundice and azotemia from liver and kidney dysfunction; fever, hemorrhage, and anemia |
|
|
Term
What are the manifestations of Lyme disease and which organism causes Lyme disease? |
|
Definition
Caused by Borrelia burgdorferi
BAKE a Key LYME pie: Bell's palsy (bilateral), Arthritis, Kardiac block, Erythema migrans |
|
|
Term
What is an Argyll Robertson pupil and what disease is it associated with? |
|
Definition
pupil constricts with accomodation but is not reactive to light. "Prostitute's pupil" (accomodates but does not react)
Associated with tertiary syphillis |
|
|
Term
What are the possible VDRL false positives for syphillis? |
|
Definition
VDRL detects nonspecific antibody that reacts with beef cardiolipin.
VDRL: Viruses (mono, hepatitis), Drugs, Rheumatic fever, Lupus and leprosy |
|
|
Term
Given the following species, identify the disease, transmission and source.
1) Bartonella spp.
2) Borrelia burgdorferi
3) Borrelia recurrentis
4) Brucella spp.
5) Campylobacter
6) Chlamydophila psittaci |
|
Definition
1) Cat scratch disease; cat scratch
2) Lyme disease; Ixodes ticks (live on deer and mice)
3) Recurrent fever; Louse (recurrent b/c of variable surface antigens)
4) Brucellosis/undulant fever; unpasteurized dairy
5) Bloody Diarrhea ; puppies, livestock (also fecal-oral, ingestion, sexual transmission)
6) Psittacosis; parrots and other birds |
|
|
Term
Given the following species, identify the disease, transmission and source.
1) Coxiella burnetii
2) Ehrlichiosis chaffeensis
3) Francisella tularensis
4) Leptospira spp.
5) Mycobacterium leprae
6) Pasteurella multocida
7) Rickettsia prowazekii
8) Rickettsia rickettsii
9) Rickettsia typhus
10) Yersinia pestis |
|
Definition
1) Q Fever ; spores from tick feces and cattle placenta
2) Ehrlichiosis; Lone Star tick
3) Tularemia ; ticks, rabbits, deer fly
4) Leptospirosis ; animal urine
5) Leprosy; Armadillos
6) Cellulitis, osteomyelitis; animal bite, cats, dogs
7) epidemic typhus; louse
8) Rocky Mountain Spotted Fever ; Dermacenter tick bite
9) Endemic typhus, Fleas
10) Plague; flea bite, rodents, prairie dogs |
|
|
Term
Which infections show rashes on palms and soles? |
|
Definition
you drive CARS using your palms and soles
Coxsackie A infection (hand, foot, and mouth disease)
Rocky Mountain Spotted Fever
Syphillis |
|
|
Term
Which systemic mycosis has a "captains wheel" appearance and is found most in Latin America? |
|
Definition
|
|
Term
What are the systemic mycoses and what do they generally cause? |
|
Definition
Histoplasmosis, Blastomycosis, Coccidioidomycosis, Para-coccidioidomycosis (all of these are dimorphic fungi)
They generally cause pneumonia and can disseminate |
|
|
Term
Which nematodes are ingested and which are cutaneous? |
|
Definition
Ingested - Enterobius, Ascaris, Trichinella --> you'll get sick if you EAT these!
Cutaneous - Strongyloides, Anclostoma, Necator --> These get into your feet from the SANd |
|
|
Term
Which parasite fits best with each finding?
1) Brain cysts, seizures
2)Liver cysts
3) B12 deficiency
4) Biliary tract disease, cholangiocarcinoma
5) Hemoptysis |
|
Definition
1) Taenia solium (cysticercosis)
2) Echinococcus granulosus
3) Diphyllobothrium latum
4) Clonorchis sinensis
5) Paragonimus westermani |
|
|
Term
Which parasite fits best with each finding?
6) Portal hypertension
7) Hematuria, bladder cancer
8) microcytic anemia
9) perianal pruritis |
|
Definition
6) Schistosoma mansoni
7) Schistosoma haematobium
8) Ancylostoma, Necator
9) Enterobius |
|
|
Term
What does the Reticular Activating System consist of? |
|
Definition
Locus ceruleus (NE), raphe nucleus (serotonin), and reticular formation
lesion of the Reticular Activating system causes coma |
|
|
Term
Which nucleus in the hypothalamus synthesizes ADH? |
|
Definition
|
|
Term
Which nucleus in the hypothalamus makes oxytocin? |
|
Definition
|
|
Term
Which area of the hypothalamus causes savage behavior and obesity when it is stimulated? |
|
Definition
|
|
Term
Which area of the hypothalamus cause savage behavior and obesity when it is destroyed? |
|
Definition
|
|
Term
Stimulation of this area of the hypothalamus leads to eating and destruction leads to starvation. |
|
Definition
|
|
Term
Destruction of this area of the hypothalamus results in hyperthermia |
|
Definition
anterior hypothalamus
Anterior region usually functions to cool off (cooling, parasympathetic) (A/C - anterior cooling) |
|
|
Term
Which nucleus in the hypothalamus releases hormones that affect the anterior pituitary? |
|
Definition
|
|
Term
Which nucleus of the hypothalamus is responsible for circadian rhythm? |
|
Definition
|
|
Term
What is the key neurotransmitter released and where is it released from to initiate sleep? |
|
Definition
seratonin, released from the raphe nucleus |
|
|
Term
What is a drug used to treat enuresis and which stage of sleep does it decrease? |
|
Definition
imipramine (a tricyclic antidepressant), decreases stage 3 sleep |
|
|
Term
What is the primary neurotransmitter in REM sleep? |
|
Definition
|
|
Term
Activity of what caues extraocular movements during REM sleep? |
|
Definition
paramedian pontine reticular formation/conjugate gaze center (PPRF)
PPRF is also responsible for rapid eye movements in nystagmus as well |
|
|
Term
What are the afferent and efferent branches of the following cranial nerve reflexes?
1) Corneal
2) Lacrimation
3) Jaw Jerk (normally is absent)
4) Pupillary
5) Gag |
|
Definition
1) V1, VII (temporal branch: orbicularis oculi)
2) V1, VII
3) V3, V3 (motor-masseter)
4) II , III
5) IX , IX and X |
|
|
Term
What are the main classes of drugs that are known to have anticholinergic side effects (besides the anticholinergics themselves)?
|
|
Definition
Tricyclic Antidepressants, First gen. H1 blockers like diphenhydramine, traditional neuroleptics like haloperidol, Amantadine |
|
|
Term
In which patients would you NOT want to give atropine? |
|
Definition
BPH patients, dementia/delirium/elderly, hyperthermia, ileus or GI obstruction |
|
|
Term
What are the clinical uses for Somatostatin (octreotide)? |
|
Definition
acromegaly and other pituitary excesses, GI endocrine excesses (like carcinoid syndrome, VIPoma, glucagonoma, insulinoma, ZE syndrome), certain diarrheal diseases to shut down GI tract, and if you need to reduce splanchnic circulation (like in portal HTN-bleeding varices, bleeding peptic ulcers) |
|
|
Term
What are the 4 things psammoma bodies are seen in? |
|
Definition
PSMM
Papillary carcinoma of thyroid, serous cystadenocarcinoma of ovary, meningioma, malignant mesothelioma |
|
|
Term
What are some drugs that can increase seizure activity as a side effect? |
|
Definition
Metaclopramide, bupropion, tramadol, enflurane, evening primrose oil |
|
|
Term
What are the Killed Viral Vaccines? |
|
Definition
RIP Always
Rabies, Influenza, Salk Polio (SalK=Killed), and HAV
|
|
|
Term
What are the live attenuated viral vaccines? |
|
Definition
Smallpox, Yellow fever, chicken pox (VZV), Sabin's polio virus, MMR
Live! one night only! see small yellow chickens get vaccinated with Sabin's and MMR |
|
|
Term
Autoantibody w/ associated disorder
1) Antinuclear antibodies
2) Anti dsDNA, anti-Smith
3) Anti-histone
4) Anti-IgG (rheumatoid factor) (IgM antibody against IgG)
5) Anticentromere |
|
Definition
1) SLE, nonspecific
2) SLE (anti-smith is more specific for SLE renal disease)
3) Drug induced lupus (like with Hydralazine)
4) Rheumatoid Arthritis
5) Scleroderma (CREST) |
|
|
Term
Autoantibody w/ associated disorder
1) Antimitochondrial
2) Anti-Scl-70 (anti-DNA topoisomerase I)
3) anti-gliadin, antiendomysial
4) anti-basement membrane
5) Anti-desmoglein |
|
Definition
1) primary biliary cirrhosis
2) Scleroderma (diffuse)
3) celiac disease
4) Goodpasture's
5) Pemphigus vulgaris |
|
|
Term
Autoantibody w/ associated disorder
1) antimicrosomal, antithyroglobulin
2) Anti-Jo-1
3) Anti-SS-A (anti-Ro)
4) Anti-SS-B (anti-La)
5) Anti-U1 RNP (ribonucleoprotein) |
|
Definition
1) hashimoto thyroiditis
2) Polymyositis, dermatomyositis
3) Sjogren's Syndrome
4) Sjogren's syndrome
5) Mixed connective tissue disorder |
|
|
Term
What type of hypersensitivity are autoantibodies associated with? |
|
Definition
Type II hypersensitivity classically |
|
|
Term
Autoantibodies w/ associated disorder
1) Anti-smooth muscle
2) Anti-glutamate decarboxylase (antiglutamic acid)
3) c-ANCA
4) p-ANCA
5) MPO-ANCA |
|
Definition
1) autoimmune hepatitis
2) Type I diabetes mellitis
3) Wegener's granulomatosis
4) microscopic polyangitis, Churg-Strauss
5) Pauci-immune crescentic glomerulonephritis |
|
|
Term
What initiates recombination of VDJ sequences? |
|
Definition
|
|
Term
What is the mechanism of interferons? |
|
Definition
induce the production of a ribonuclease that inhibits viral protein synthesis by degrading viral mRNA (but not host mRNA) |
|
|
Term
What are the neutrophil chemotactic agents? |
|
Definition
IL-8, C5a, Leukotriene B4 |
|
|
Term
Which cytokine do immunosuppressants most commonly affect? |
|
Definition
|
|
Term
What are the main causes of eosinophilia (low eosinophils)? |
|
Definition
NAACP D
Neoplastic
Asthma - includes Churg-Strauss
Allergic processes & acute interstitial nephritis
Collagen vascular diseases
Parasites (invasive)
Drugs |
|
|
Term
What do the granules within basophils contain? |
|
Definition
heparin (anticoagulant), histamine (vasodilator) and other vasoactive amines, and leukotrienes (LTD4)
basophils are found in blood |
|
|
Term
Which immunodeficiencies will show absence of thymic shadow? |
|
Definition
Bruton's agammaglobulinemia, Thymic Aplasia (DiGeorge syndrome), SCID |
|
|
Term
What are the X-linked immunodeficiences? |
|
Definition
WBC H
Wiscott-Aldrich
Bruton Agammaglobulinemia
Chronic Granulomatous disease
Hyper IgM syndrome (3 types: X-linked=no CD ligand, AR=noCD40, NEMO deficiency) |
|
|
Term
What are the characteristics of Wiscott-Aldrich syndrome? |
|
Definition
WAITER
Wiscott Aldrich
Immunodeficiency
Thrombocytopenia and purpura
Eczema
Recurrent pyogenic infections |
|
|
Term
What is the Presentation in Hyper-IgM syndrome (Job Syndrome)? |
|
Definition
FATED
coarse Facies, cold (noninflamed) staphylocococcal Abscesses, retained primary Teeth (resulting in 2 rows of teeth), increased IgE, and Dermatologic problems (like eczema |
|
|
Term
What is the presentation triad for Severe combined immunodeficiency (SCID)? |
|
Definition
1) Severe recurrent infections (chronic mucocutaneous Candidiasis, recurrent or fatal RSV, VZV, HSV, etc., PCP pneumonia)
2) chronic diarrhea
3) failure to thrive
no thymic shadow as well |
|
|
Term
What is the defect/s in SCID? |
|
Definition
defective IL-2 receptor (X-linked, most common)
adenosine deaminase deficiency
failure to synthesize MHC II antigens |
|
|
Term
What is the defect in Ataxia telangiectasia and what is the classic triad? |
|
Definition
Defects in the ATM gene that codes for DNA repair enzymes
Triad: cerebellar defects (ataxia), spider angiomas (telangiectasia), IgA deficiency |
|
|
Term
What are the immunodeficiencies involved with phagocyte dysfunction? |
|
Definition
Leukocyte adhesion deficiency type 1 (phagocytes can't enter tissue b/c defect in LFA-1 integrin on phagocytes)
Chediak-Higashi syndrome (microtubule dysfunction in phagolysosome fusion, defect in lysosomal regulator trafficking gene)
Chronic granulomatous disease (lack of NADPH oxidase, decreased ROS and absent respiratory burst--- see a negative tetrazolium dye reduction test) |
|
|
Term
Which tissues don't need insulin for glucose uptake? |
|
Definition
BRICK L
Brain
RBCs
Intestine
Cornea
Kidney
Liver |
|
|
Term
Which things increase insulin and which things decrease insulin? |
|
Definition
increase: hyperglycemia, GH, cortisol, beta agonists
decrease: hypoglycemia, somatostatin, alpha agonists |
|
|
Term
Where are GLUT 1 receptors located?
What about GLUT 2?
GLUT 4? |
|
Definition
GLUT 1: RBCs and brain
GLUT2 (bidirectional): beta islet cells, liver, kidney, small intestine
GLUT 4 (insulin responsive): adipose tissue, skeletal muscle |
|
|
Term
Which tissues don't have sorbitol dehydrogenase and thus can get osmotic damage in diabetes? |
|
Definition
schwann cells, lens, retina and kidneys
water comes in b/c sorbitol accumulation |
|
|
Term
1) Where is iron absorbed in GI tract?
2) Where is folate absorbed in GI tract? |
|
Definition
|
|
Term
What are the main Malabsorption syndromes? |
|
Definition
These Will Cause Devastating Absorption Problems
Tropical sprue
Whipples disease
Celiac sprue
Abeta-lipoproteinemia
Pancreatic insufficiency |
|
|
Term
What are the manifestations of Whipple's Disease? |
|
Definition
Foamy Whipped cream in a CAN
Foamy (PAS-positive) macrophages
Cardiac symptoms
Arthralgias
Neurologic symptoms
Most commonly occurs in older men |
|
|
Term
What is Abeta-lipoproteinemia and when does it manifest? |
|
Definition
it is a dec. synthesis of apo B --> inability to generate chylomicrons --> dec. secretion of cholesterol, VLDL into bloodstream --> fat accumulation in enterocytes
presents in early childhood with malabsorption and neurologic manifestations |
|
|
Term
Wha is the primary disease assoc. w/ celiac sprue and what malignancy are you at risk for in the future with celiac sprue? |
|
Definition
dermatitis herpetiformis
moderately inc. risk of T cell lymphoma |
|
|
Term
Which autoantibodies do you see in celiac sprue? |
|
Definition
antibodies to gliadin, tissue transglutaminase and endomysial antibodies |
|
|
Term
Which organs are involved in Vitamin B12 absorption and thus could cause problems if they are dysfunctional? |
|
Definition
stomach (chief cells), duodenum, pancreas, distal ileum |
|
|
Term
What are the 5 2's of Meckel's Diverticulum? |
|
Definition
2 inches long, 2 feet from the ileocecal valve, 2% of the population, presents within first 2 years of life, and may have 2 types of epithelia (gastric/pancreatic)
most common congenital anomaly of the GI tract |
|
|
Term
What type of cells are in a carcinoid tumor and where are the common sites? |
|
Definition
tumor of neuroendocrine cells. 50% of small bowel tumors. Most common sites are the appendix, ileum and rectum. |
|
|
Term
What can a carcinoid tumor produce and what are the characteristics of the syndrome that occurs when this happens? |
|
Definition
5-HT, leads to carcinoid syndrome if the tumor or metastasis exists outside of the GI tract (usually liver), carcinoid syndrome is observed.
B FDR : Bronchospasm (causing wheezing), Flushing, Diarrhea, Rt. sided heart murmur
|
|
|
Term
What are the common causes of bowel obstruction? |
|
Definition
ABC: adhesions, bulge (hernia), cancer/tumors
Other less common causes include volvulus, intussuscetion, Crohns, gallstone ileus, bezoar, bowel wall hematoma from trauma, inflammatory stricture, congenital malformation, radiation enteritis |
|
|
Term
What are the Rate limiting enzymes for the following?
1) glycolysis
2) gluconeogenesis
3) TCA cycle
4) Glycogen synthesis
5) Glycogenolysis
6) HMP shunt (Pentose Phosphate) |
|
Definition
1) phosphofructokinase 1
2) Fructose-1,6-bisphosphatase
3) isocitrate dehydrogenase
4) glycogen synthase
5) glycogen phosphorylase
6) Glucose-6-phosphate dehydrogenase
|
|
|
Term
What are the rate limiting enzymes for the following?
1) De novo pyrimidine synthesis
2) De novo purine synthesis
3) Urea cycle
4) Fatty acid synthesis
5) Fatty acid oxidation
6) Ketogenesis
7) Cholesterol synthesis |
|
Definition
1) Carbamoyl phosphate synthetase II
2) Glutamine-PRPP amidotransferase
3) Carbamoyl phosphate syntetase I
4) Acetyl CoA carboxylase (ACC)
5) Carnitine acyltransferase I (carnitine shuttle)
6) HMG-CoA synthase
7) HMG-CoA reductase |
|
|
Term
Why are alanine and glutamine found in such high concentrations in the blood? |
|
Definition
They are carriers of nitrogen from tissues into the urea cycle. |
|
|
Term
What is the purpose of a transamination reaction? |
|
Definition
A transamination is the transfer of the amino group of an amino acid (like alanine) to alpha-ketoglutarate to form glutamate (glutamate can then transfer NH4+ into the urea cycle), The remaining deaminated amino acid is a keto-acid (such as pyruvate) that is used in energy metabolism.
|
|
|
Term
In addition to substrates, what is required by all aminotransferases? |
|
Definition
Pyridoxal phosphate (Vitamin B6 derivative).
|
|
|
Term
What are the 2 most important aminotransferases in the body, where are they located, and what reaction do they catalyze? |
|
Definition
Alanine aminotransferase (ALT) and Aspartate Aminotransferase (AST)
ALT converts alanine to pyruvate and in doing so converts alpha ketoglutarate to glutamate
AST converts oxaloacetate to aspartate and in doing so converts glutamate to alphaketoglutarate.
This is why you can have a urea cycle problem either by liver disease or by a deficieny in a urea cycle enzyme. |
|
|
Term
What are the possible products of pyruvate? |
|
Definition
alanine, lactate, acetyl CoA, oxaloacetate (to continue the TCA cycle or to go into gluconeogenesis) |
|
|
Term
What happens in pyruvate dehydrogenase deficiency? What is the treatment? |
|
Definition
get backup of substrate (pyruvate and alanine) resulting in lactic acidosis.
Findings: neurologic defects
Tx: inc. intake of ketogenic nutrients (e.g. high fat content or inc. in lysine and leucine which are the only purely ketogenic amino acids) ... this helps to make acetyl CoA in a different way |
|
|
Term
What are some uncoupling agents and what effect do they have? |
|
Definition
2,4-dinitrophenol (a wood preserving agent), aspirin, thermogenin in brown fat (used in hibernating animals)
inc. permeability of membrane causing a decrease in proton gradient and inc. oxygen consumption. ATP synthesis stops, but electron transport continues. Produces heat (wasted energy). |
|
|
Term
What are the five categories of criteria for the diagnosis of metabolic syndrome? |
|
Definition
abdominal girth, triglycerides, HDL, BP, Blood sugars |
|
|
Term
|
Definition
Due to backup of blood into liver, commonly caused by right sided heart failure (would see JVD) and Budd Chiari syndrome (occlusion of IVC or hepatic veins - no JVD) |
|
|
Term
|
Definition
childhood Hepatoencephalopathy |
|
|
Term
What are some conditions associated with Budd-Chiari Syndrome? |
|
Definition
hypercoagulability, pregnancy (from uterus pressing on IVC), hepatocellular carcinoma, polycythemia vera |
|
|
Term
Which hepatitis viruses are fecal/oral transmission? |
|
Definition
The Vowels hit your Bowels
HAV and HEV (naked viruses do not rely on an envelope so they are not destroyed by the gut |
|
|
Term
Which hepatitis viruses can cause a chronic carrier state? |
|
Definition
|
|
Term
What dare the characteristics of the disease caused by Leishmania donovani?
How is it transmitted? What is the diagnosis and treatment? |
|
Definition
Viceral leishmaniasis (kala-azar): spiking fevers, hepatosplenomegaly, pancytopenia
transmission by the sandfly (it is in the middle east-think lots of deserts); diagnosis by macrophages containing "amastigotes" ; treatment is sodium stibogluconate |
|
|
Term
Which antibodies can be used to help make the dx of autoimmune hepatitis? |
|
Definition
postive serum ANA, + anti-smotth muscle, + anti/liver/kidney microsomal antibody
negative antimitochondrial and negative viral serology |
|
|
Term
What is the classic triad of hemochromatosis? |
|
Definition
micronodular cirrhosis, Diabetes mellitus and skin pigmentation --> "bronze diabetes"
results in CHF, testicular atrophy in males and inc. risk of HCC
Hemochromotosis Can Cause Deposits |
|
|
Term
What is the treatment for hemochromatosis? |
|
Definition
repeated phlebotomy, deferoxamine |
|
|
Term
What are the 2 main risk factors for hepatic angiosarcoma? |
|
Definition
vinyl chloride and arsenic |
|
|
Term
What are the 3 main functions of bile? |
|
Definition
1) digestion and absorption of lipids and fat-soluble vitamins
2) cholesterol excretion (body's only means of eliminating cholesterol)
3) Antimicrobial activity (via membrane disruption) |
|
|
Term
What is Charcot's triad of cholangitis (biliary tree infection)? |
|
Definition
Jaundice, Fever, RUQ pain |
|
|
Term
What are the manifestations of Carnitine deficiency? |
|
Definition
inability to transpotr LCFAs into the mitochondria, resulting in toxic accumulation. Causes weakness, hypotonia, and hypoketotic hypoglycemia |
|
|
Term
What is the result of an Acyl-CoA dehydrogenase deficiency? |
|
Definition
increased dicarboxylic acids, increased glucose and ketones |
|
|
Term
What are the essential amino acids? |
|
Definition
PVT TIM HALL
Phenylalanine, valine, threonine, tryptophan isoleucine, methionin, histidine, arginine, leucine, lysine |
|
|
Term
Which of the essential amino acids are ketogenic only? |
|
Definition
|
|
Term
What are the Cytochrome P450 inhibitors? |
|
Definition
PICK EGS
Protease inhibitors
Isoniazid
Cimetidine
Ketoconazole
Erythromycin
Grapefruit juice
Sulfonamides |
|
|
Term
What are the Cytochrome P450 inducers? |
|
Definition
BCG PQRS
Barbiturates
Carbamazepine
Griseofulvin
Phenytoin
Quinidine (can both induce and inhibit P450)
Rifampin
St. John's Wort |
|
|
Term
What two important enzymes is Zinc needed for? |
|
Definition
carbonic anhydrase and lactic dehydrogenase |
|
|
Term
What would you see clinically in a patient with a zinc deficiency? |
|
Definition
rash around the eyes, mouth, nose, anus (Acrodermatitis enteropathica)
delayed wound healing, hypogonadism, decreased adult hair, dysgeusia, anosmia
decreased mental function, impaired night vision, infertility, |
|
|
Term
In what disease does vitamind D toxicity result from excess macrophage generation of 25-hydroxy-vitamin D? |
|
Definition
|
|
Term
What are the signs of Vitamin A deficiency? |
|
Definition
Night blindness
Xerophthalmia (pahologi dryness of the conjunctiva and cornea) --> corneal ulceration and blindness
Keratomalacia (wrinkling, clouding of cornea)
Bitot's spots (dry, silver-gray plaques on the bulbar conjunctiva) |
|
|
Term
Symptoms of Vitamin A toxicity |
|
Definition
Headache, nausea/vomiting, stupor, skin (dry and pruritic) liver enlarged and possibly cirrhotic, bone and joint pain, increase in intracranial pressure (psuedotumor cerebri) |
|
|
Term
What is another name for Vitamin E? |
|
Definition
|
|
Term
What is associated w/ vitamin E deficiency? |
|
Definition
Spinocerebellar degeneration --> ataxia
Peripheral neuropathy and proximal muscle weakness
increased fragility of erythrocytes (hemolytic anemia) |
|
|
Term
Which Vitamins function similar to reduced glutathione? |
|
Definition
Vitamin C, Vitamin E, and Vitamin A |
|
|
Term
What results from an excess of folate and why? |
|
Definition
B12 deficiency results b/c this vitamin is used in making tetrahydrofolate |
|
|
Term
What are the 3 D's of Vitamin B3 (niacin) deficiency? |
|
Definition
Pellagra
Diarrhea, Dermatitis, Dementia |
|
|
Term
What is the function of riboflavin? |
|
Definition
It is a cofactor in oxidation/reduction reactions (e.g. FADH2)
Deficiency causes Cheilosis and Corneal vascularization |
|
|
Term
What nutrient deficiencies are associated w/ cheilosis, glossitis, and stomatitis? |
|
Definition
iron, riboflavin, niacin, folate, and B12 |
|
|
Term
Which amino acid is required for the generation of niacin (B3)? |
|
Definition
|
|
Term
Which cytokines are released by virally infected cells? |
|
Definition
|
|
Term
What are the GI abnormalities associated with Down Syndrome? |
|
Definition
Duodenal atresia, hirschsprungs disease, celiac disease, annular pancreas |
|
|
Term
What is the most abundant bacteria in the colon of most individuals? |
|
Definition
|
|
Term
Which colonic polyps are precancerous...Adenomatous or hyperplastic? |
|
Definition
Adenomatous polyps are precancerous -- malignant risk is assoc. with increased size and increased villous histology |
|
|
Term
Which ALWAYS has rectal involvement... Crohns or UC? |
|
Definition
|
|
Term
What are the 4 A's of Klebsiella pneumonia? |
|
Definition
Aspiration pneumonia
Abscess in lungs and liver
Alcoholics
di-A-betics
Red currant jelly sputum. |
|
|
Term
What are the urease-positive bugs? |
|
Definition
PUNCH-K
Proteus, Ureaplasma, Nocardia, Cryptococcus, H.pylori, Klebsiella |
|
|
Term
What drugs have photosensitivity reactions? |
|
Definition
SAT for photos
Sulfonamides, amiodarone, tetracycline |
|
|
Term
What drugs should be avoid in patients with a sulfa allergy? |
|
Definition
Popular FACTSSS
Probenecid, Furosemide, Acetazolamide, Celecoxib, Thiazides, Sulfonamide antibiotics, Sulfasalazine, Sulfonylureas |
|
|
Term
What drugs can cause Stevens-Johnson Syndrome? |
|
Definition
Penicillin
Seizure drugs: Ethosuximide, Carbamazepine,Lamitrigine, Phenytoin, Phenobarbital
Sulfa drugs
Allopurinol |
|
|
Term
Which bacteria is a common antecedent to Guillain Barre syndrome? |
|
Definition
|
|
Term
With which bacteria should antibiotics be aboided b/c they may prlong the carrier state in GI tract infections? |
|
Definition
|
|
Term
Which bacteria is a common cause of osteomyelitis in sickle cell patients? |
|
Definition
|
|
Term
Which GI bacteria is also associated with Reiter syndrome? |
|
Definition
|
|
Term
What are some bugs that can mimic appendicitis? |
|
Definition
Yersinia enterocolitica, Campylobacter jejuni, non-typhoidal Salmonella
mimic appendicitis by causing mesenteric adenitis |
|
|
Term
What are the Famous Fives of the Limbic System? |
|
Definition
Feeding, Fleeing, Fighting, Feeling and sex |
|
|
Term
Which regions of the brain are included in the limbic system? |
|
Definition
cingulate gyrus, hippocampus, fornix, mamillary bodies, and septal nucleus |
|
|
Term
What mutations are associated w/ a mutation of the K-RAS oncogene? |
|
Definition
Kolon, panKreatic and lung |
|
|
Term
What are the most common cancers associated w/ ionizing radiation? |
|
Definition
Myeloid leukemia - ALL and CML
Thyroid |
|
|
Term
Which neoplasm is associated with each of these conditions?
1) Down syndrome
2) Xeroderma pigmentosum, albinism
3) Chronic atrophic gastritis, pernicious anemia, postsurgical gastric remnants
4) Tuberous sclerosis (facial angiofibroma, seizures, mental retardation)
5) Actinic keratosis |
|
Definition
1) ALL (we ALL fall down), AML
2) Melanoma, basal cell carcinoma, and especially squamous cell carcinomas of skin
3) gastric adenocarcinoma
4) cardiac rhabdomyoma, astrocytoma, angiomyolipoma
5) SCC of skin |
|
|
Term
Which neoplasm is associated with each of these conditions?
1) Barrett's esophagus
2) Plummer-Vinson syndrome
3) cirrhosis (alcoholi, hepatitis B or C)
4) ulcerative colitis
5) Paget's disease of bone |
|
Definition
1) esophageal adenocarcinoma
2) SCC of esophagus
3) Hepatocellular carcinoma
4) colonic adenocarcinoma
5) secondary osteosarcoma and fibrosarcoma |
|
|
Term
Which neoplasm is associated with the following condition?
1) Immunodeficiency states
2) AIDS
3) Autoimmune diseases
4) Acanthosis nigricans
5) dysplastic nevus
6) radiation exposure
7) Achalasia
8) Sjogren's |
|
Definition
1) Malignant lymphomas
2) aggressive malignant lymphomas (non hodgkin's) and Kaposi sarcoma
3) lymphoma
4) visceral malignancy (stomach, lung, breast, uterus)
5) malignant melanoma
6) papillary thyroid cancer
7) SCC of esophagus
8) B cell lymphoma |
|
|
Term
In which cancers do you see Psammoma bodies? |
|
Definition
PSaMMoma
Papillary (thyroid), Serous (ovary), meningioma, mesothelioma |
|
|
Term
Which structures perforate the diaphragm at the following levels?
1) T8
2) T10
3) T12 |
|
Definition
1) vena cava (8 letters)
2) o-esophagus (10 letters)
3) aortic hiatus (12 letters), azygos vein, thoracic duct |
|
|
Term
Which muscles are responsible for inspiration and expiration during quiet breathing? |
|
Definition
inspiration: diaphragm
expiration: passive |
|
|
Term
What muscles are responsible for inspiration and expiration during exercise? |
|
Definition
inspiration: external intercostals, Scalene muscles, Sternocleidomastoids
expiration: internal intercostals, rectus abdominis, internal and external obliques, transversus abdominis |
|
|
Term
Where in the each bronchopulmonary segment is the pulmonary artery and bronchial artery located in vs. the veins and lymphatics? |
|
Definition
pulmonary artery and bronchial artery are located in the center
veins and lymphatics drain along the edges |
|
|
Term
Where would you aspirate a peanut when standing up? How about when supine? |
|
Definition
while upright - lower portion of right inferior lobe
while supine - superior portion of right inferior lobe |
|
|
Term
Where is the pulomary artery located in relation to the bronchus at each lung hilus? |
|
Definition
RALS - Right side Anterior, Left side Superior |
|
|
Term
How far down do the pseudostratified ciliated columnar cells extend? |
|
Definition
they extend to the respiratory bronchioles (macrophages clear debris in alveoli) |
|
|
Term
What are the 2 primary roles of type II pneumocytes? |
|
Definition
secrete pulmonary surfactant (dipalmitoyl phosphatidylcholine) and serve as precursors to type I cells and other type II cells.
type II cells proliferate during lung damage |
|
|
Term
What ratio of lecithin-to-sphingomyelin in the amniotic fluid indicates fetal lung maturity? |
|
Definition
|
|
Term
How far down the respiratory tract do the goblet cells extend? |
|
Definition
|
|
Term
What substances are known for causing methemoglobinemia? |
|
Definition
Nitrites
antimalarial drugs
Dapsone
Sulfonamides
Metoclopramide (Reglan)
Nitrates
local anesthetics |
|
|
Term
What is the treatment for methemoglobinemia? |
|
Definition
stop offending drug and give methylene blue |
|
|
Term
What gene mutation can cause primary pulmonary HTN? |
|
Definition
|
|
Term
What are some of the treatment options available for Pulmonary HTN? |
|
Definition
Bosentan, Sidenafil (PDE inhib), prostaglandin agonist, DHP CCB (nifedipine) |
|
|
Term
What is the mechanism of action of Bosentan? |
|
Definition
endothelin-1 receptor antagonist, resulting in decreased pulmonary vascular resistance |
|
|
Term
What is the V/Q at the apex of the lung?
What is the V/Q at the base of the lung?
|
|
Definition
At the apex, V/Q is 3
At the base, V/Q is 0.6 |
|
|
Term
What is V/Q during airway obstruction?
What is V/Q during blood flow obstruction? |
|
Definition
V/Q appraches 0 during airway obstruction (shunt). 100% Oxygen will not improve PO2
V/Q approaches infinity in a blood flow obstruction (physiologic dead space). 100% Oxygen will improve PO2 assuming less than 100% dead space |
|
|
Term
What are the main things that predispose to DVT? |
|
Definition
Virchow's triad:
Stasis, hypercoagulability, and endothelial damage |
|
|
Term
What is the differential diagnosis for eosinophilia? |
|
Definition
DNAACP
Drugs
Neoplasm
Atopic Diseases (allergy, asthma, Churg Strauss)
Addison's Disease
Acute Interstitial nephritis
collagen vascular diseases
parasites (strongyloides, etc.)
|
|
|
Term
What are the features of Sarcoidosis? |
|
Definition
GRUELING
Granulomas, RA, Uveitis (eye), Erythema nodosum (tibial), lymphadenopathy (hilar, bilateral), idiopathic, not TB, gamma globulinemia, (ACE increase) |
|
|
Term
Toxicity of which 3 drugs can cause restrictive lung disease? |
|
Definition
bleomycin, busulfan, amiodarone |
|
|
Term
Which patholgy do you find Psammoma bodies in? |
|
Definition
PSaMM
papillary thyroid, serous cystadenoma, meningioma, mesothelioma |
|
|
Term
What are some of the main complications of lung cancer? |
|
Definition
SPHERE of complications
Superior vena cava syndrome
Pancoast tumor
Horner's Syndrome
Endocrine (paraneoplastic)
Recurrent laryngeal symptoms (hoarseness)
Effusions (pleural or pericardial) |
|
|
Term
Where does lung cancer often metastasize to? |
|
Definition
brain (epilepsy), bone (pathologic fracture), liver (jaundice,hepatosplenomegaly), and adrenals |
|
|
Term
What syndrome does small cell carcinoma of lung sometimes lead to? |
|
Definition
Lambert-Eaton syndrome (autoantibodies against calcium channels) - weakness improves with use (prime the muscles)
|
|
|
Term
Which organisms can be picked up on a silver stain? |
|
Definition
some fungi, Legionella pneumophila, pneumocystis jiroveci |
|
|
Term
Which bugs do not gram stain well? |
|
Definition
These Rascals May Microscopically Lack Color
Treponema (too thin to be visualized)
Rickettsia (intracellular parasite)
Mycobacteria (high lipid content cell wall, acid fast stain)
Mycoplasma (no cell wall)
Legionella pneumophila (primarily intracellular)
Chlamydia (intracellular parasite; lacks muramic acid in cell wall)
|
|
|
Term
Which bugs are identified using giemsa stain? |
|
Definition
Borrelia, Plasmodium, trypanosomes, Chlamydia |
|
|
Term
Which bugs are identified using PAS (periodic acid-Schiff) |
|
Definition
PASs the sugar
stains glycogen, mucopolysaccharides; used to diagnose Whipple's disease |
|
|
Term
Which bugs are identified using Ziehl-Neelsen (carbol fuchsin) stain? |
|
Definition
|
|
Term
Which organisms are identified using India ink stain? |
|
Definition
Cryptococcus neoformans (mucicarmine can also be used to stain thick polysaccharide capsule red)
|
|
|
Term
Which bacteria are encapsulated? |
|
Definition
Some Killers Have Nice Shiny Bodies
Streptococcus pneumoniae, Haemophilus influenzae type B, Neisseria meningitidis, Salmonella, Klebsiella pneumoniae, group B Strep. |
|
|
Term
What 5 bacteria secrete enterotoxins (exotoxin that causes water and electrolyte imbalances of intestinal epithelium resulting in diarrhea)? |
|
Definition
Vibrio, ETEC, Staph aureus, Salmonella, Shigella |
|
|
Term
Which organisms are catalase positive? |
|
Definition
you need SSPACE for your cat
S. aureus, Serratia, Pseudomonas, Actinomyces, Candida, E.Coli
|
|
|
Term
What are the pigment producing bacteria and what color pigments do they produce? |
|
Definition
Actinomyces israelii -- yellow "sulfur" granules
S. aureus - yellow pigment
Pseudomonas aeruginosa - blue/green pigment
Serratia marcescens - red pigments |
|
|
Term
Which organisms have an IgA protease as a virulence factor and why? |
|
Definition
SHiN
S. pneumoniae, H. influenzae type B, and Neisseria.... in order to colonize respiratory mucosa |
|
|
Term
What organisms most commonly are implicated in subacute endocarditis? |
|
Definition
Strep. viridans (most common), also Enterococci, and Staph epidermidis
Strep. Bovis in colon cancer patients |
|
|
Term
Which gram positve bacteria form spores? |
|
Definition
found in soil: Bacillus antracis, Clostridium perfringens, C. tetani
Other spore formers: B. cereus, C. botulinum, Coxiella burnetii |
|
|
Term
Which bacteria are obligate aerobes? |
|
Definition
Nagging Pests Must Breathe
Nocardia, Pseudomonas aeruginosa, Mycobacterium tuberculosis, and Bacillus
|
|
|
Term
Which bacteria are obligate anaerobes?
Which 2 main antibiotics cover for anerobes? |
|
Definition
Anaerobes Can't Breath Air
Clostridium, Bacteroides, and Actinomyces (these all lack catalase and/or SOD and are susceptible to oxidative damage)
Metronidazole or Clindamycin |
|
|
Term
Which 2 gram positive rods form long branching filaments that resemble fungi?
What drugs treat these 2?
|
|
Definition
Actinomyces israelii (an anaerobe) and Nocardia asteroides (an aerobe)
SNAP: Sulfa for Nocardia... Actinomyces use Penicillin |
|
|
Term
What are the clincal uses for ampicillin and amoxicillin? |
|
Definition
Neonatal infections and UTIs |
|
|
Term
Name three penicillinase inhibitors that enhance the spectrum of penicillin drugs? |
|
Definition
sulbactam, clavulanic acid, and tazobactam |
|
|
Term
What is the clinical use for Ticarcillin, carenicillin and piperacillin that is different than similar penicillin antibiotics? |
|
Definition
Pseudomonas spp. and gram negative rods |
|
|
Term
What is unique about the clinical use for ampicllin and amoxicillin vs. some of the other penicillins? |
|
Definition
Extended coverage: HEELPSS
treats the gram + as well as Haemophilus influenzae, E. coli, enterococci Listeria monocytogenes, Proteus mirabilis, Salmonella, Shigella |
|
|
Term
Which penicillin drug would ou give for a neonatal infection? |
|
Definition
|
|
Term
Which hormones stimulate pancreatic secretion? |
|
Definition
CCK, Secretin, Acetylcholine |
|
|
Term
What are the first gen. cephalosporins? |
|
Definition
|
|
Term
Which organisms are covered with first gen. cephalosporins and which clinical infections are treated? |
|
Definition
gram postive cocci as well as PEcK.
Proteus, E.coli, Klebsiella pneumonia
treats UTIs, URT infection, viridans strep endocarditis prophylaxis |
|
|
Term
Which organisms are NOT covered by cephalosporins? |
|
Definition
these organisms are LAME
Listeria, Atypicals (Chlamydia, Mycoplasma), MRSA, and Enterococci |
|
|
Term
What are the second generation cephalosporins and what are the clinical uses? |
|
Definition
cefoxitin, cefaclor, cefuroxime
gram + cocci plus HEN PEcKS
H. influenzae, Enterobacter, Neisseria spp., Proteus, E.coli, Klebsiella pneumonia, Serratia marcescens
|
|
|
Term
What are the 3rd generation cephalosporins and what do they treat? |
|
Definition
Ceftriaxone, Cefotaxime, ceftazidime,
treat serious gram negative infections resistant to other gram positive organisms
Ceftazidime - Pseudomonas
Ceftriazone - meningitis and gonorrhea
|
|
|
Term
What is the main 4th generation cephalosporin and what does it treat? |
|
Definition
Cefepime
Pseudomonas and gram positive organisms |
|
|
Term
What are the toxicities of cephalosporin class? |
|
Definition
Vitamin K deficiency, Hypersensitivity, inc. nephrotoxicity of aminoglycosides, disulfiram-like reaction with ethanol (in some like cefamandole and cefotetan) |
|
|
Term
Which substances can have a side-effect similar to disulfiram with alcohol consumption? |
|
Definition
Metronidazole, some cephalosporins, procarbazine, 1st gen. sulfonylureas |
|
|
Term
What is the mechanism and clinical use of aztreonam? |
|
Definition
Mechanism is inhibition of cell wall synthesis (by binding PBP3). Is synergistic w/ aminoglycosides and has no cross-allergenicity w/ penicillins
Clinical use is gram-negative rods only |
|
|
Term
Which drug is always given with imipenem? |
|
Definition
Cilastatin, which enhances imipenem by inhibiting renal dehydropeptidase I) to dec. inactivation of drug in renal tubules
This is used as a big gun in ICU setting when most other drugs have failed. |
|
|
Term
Which drugs are known for causing drug induced lupus? |
|
Definition
Isoniazid, hydralazine, procainamide |
|
|
Term
What are the R's of Rifampin? |
|
Definition
RNA pol. inhibitor
Revs up microsomal P450
Red/orange body fluids
Rapid resistance if used alone |
|
|
Term
For what infections is rifampin used? |
|
Definition
M. TB
Leprosy
minococcal prophylaxis
prophylaxis for H. influenzae type B |
|
|
Term
What is the mechanism of C. Botulinum toxin? |
|
Definition
|
|
Term
Which organisms are spirochetes? |
|
Definition
BLT. B is Big
Borrelia (big size), Leptospira, and Treonema |
|
|
Term
What are the manifestations of Lyme Disease? |
|
Definition
BAKE a Key LYME pie:
Bell's palsy (bilateral), Arthritis, Kardiac block, erythema migrans |
|
|
Term
What are some of the VDRL false positives? |
|
Definition
VDRL:
Viruses (mono and hepatitis), Drugs, Rheumatic fever, lupus and leprosy |
|
|
Term
What is the disease associated with th following zoonotic bacteria and what is the transmission and source?
1) Bartonella spp.
2) Borrelia bugdorferi
3) Borrelia recurrentis
4) Brucella spp.
5) Campylobacter
6) Chlamydophila psittaci |
|
Definition
1) Cat scratch disease, cat scratch
2) Lyme disease, Ixodes ticks (live on deer and mice)
3) Recurrent fever, Louse (recurrent b/c of variable surface antigens)
4) Bucellosis/undulant fever, unpasteurized dairy
5) Bloody diarrhea, puppies and livestock (also fecal-oral, ingestion, sexual transmission)
6) Psittacosis, parrots and other birds |
|
|
Term
What is the disease associated with th following zoonotic bacteria and what is the transmission and source?
1) Coxiella burnetii
2) Ehrlichiosis chaffeensis,
3) Francisella tularensis
4) Leptospira spp.
5) Mycobacterium leprae
6) Pastuerella multocida |
|
Definition
1) Q fever, spores from tick feces and cattle placenta
2) Ehrlichiosis, lone star tick
3) Turaremia, ticks and rabbits and deer fly
4) Leptospirosis, animal urine
5) Leprosy, armadillos
6) Cellulitis, osteomyelitis ; animal bite, cats, dogs |
|
|
Term
What is the disease associated with th following zoonotic bacteria and what is the transmission and source?
1) Rickettsia prowazekii
2) Rickettsia rickettsii
3) Rickettsia typhus
4) Yersina pestis |
|
Definition
1) Epidemic typhus, louse
2) Rocky Mountain spotted ever, dermacentor tick bite
3) Endemic typhus, fleas
4) Plague; flea bite and rodents and prairie dogs |
|
|
Term
With which Diseases are Palm and Sole rashes seen? |
|
Definition
you drive CARS using your palms and soles.
Coxsackievirus A infection (hand, foot, and mouth disease), Rocky Mountain spotted fever, syphillis |
|
|
Term
What are the obligate intracellular bugs? |
|
Definition
Rickettsia and Chlamydia (can't make their own ATP) |
|
|
Term
Which bugs are facultative intracellular? |
|
Definition
Some Nasty Bugs May Live FacultativeLY
Salmonella, Neisseria, Brucella, Mycobacterium, Listeria, Francisella, Legionella, Yersinia pestis
|
|
|
Term
What is the classic rickettsial triad of features? |
|
Definition
|
|
Term
Which antibiotic should be used to treat the following?
1) Mycoplasma pneumoniae
2) RMSF
3) Early Lyme disease
4) Late Lyme disease
5) Syphillis
6) Leprosy
7) Bacterial vaginosis |
|
Definition
1) tetracycline or macrolides
2) doxycycline
3) doxycylcine
4) ceftriaxone
5) penicillin G
6) Dapsone, Rifampin , and Clofuzimine for 6-24 months
7) metronidazole |
|
|
Term
What adult structures are derived from the 3rd, 4th and 6th aortic arches? |
|
Definition
3rd: common carotid and proximal part of internal carotid
4th: left-->aortic arch ; right--> prox. part of subclavian
6th: left--> ductus arteriosus ; right--> prox. part of pulmonary arteries |
|
|
Term
What is some of the pathology that can result from problems with the truncus arteriosus (the aorticopulmonary septum separates)? |
|
Definition
transposition of great vessels (failure to spiral), tetralogy of fallot (skewed AP septum development), persistent TA (partial AP septum development) |
|
|
Term
What are the 5 T's of Congenital Heart Disease (Right to left shunts causing early cyanosis) |
|
Definition
Tetralogy, Transposition, Truncus (persistent), Tricuspid atresia, TAPVR (total anomalous pulmonary venous return)
|
|
|
Term
What are the left to right shunts of congenital heart disease (causing late cyanosis - "blue kids")? |
|
Definition
|
|
Term
What happens if you dont correct a VSD, ASD or PDA? |
|
Definition
You get Eisenmenger's syndrome... compensatory pulmonary vascular hypertrophy results in pulmonary HTN and shunt reversal |
|
|
Term
What is Ebsteins anomaly and what is it associated with? |
|
Definition
Associated with maternal lithium use.
Tricuspid leaflets are displaced into right ventricle, hypoplastic right ventricle, tricuspid regurg or stenosis... results in dilated right atrium (which causes an inc. risk of supraventricular tachycardia and WPW)
80% of these patients have a patent foramen ovale |
|
|
Term
What problems are offspring of diabetic mothers at higher risk for? |
|
Definition
Transposition of the great vessels, hypoglycemia, large for gestational age |
|
|
Term
What are the main 3 things that affect stroke volume? |
|
Definition
SV CAP
Contractility, Afterload, and preload |
|
|
Term
What are some common physiologic cases where SV is increased? |
|
Definition
anxiety, exercise, and pregnancy |
|
|
Term
What is preload?
What is afterload?
|
|
Definition
Preload = ventricular EDV, atrial pressure, or central venous pressure
Afterload= Mean arterial pressure (proportional to total peripheral resistance |
|
|
Term
Which vessels account for most of the total peripheral resistance? |
|
Definition
arterioles (these regulate capillary flow) |
|
|
Term
What does Pulmonary Capillary wedge pressure approximate? |
|
Definition
left atrial pressure, measured with a Swan-Ganz catheter, typically <12 |
|
|
Term
What is the normal pressure in the left ventricle? How about the right ventricle? |
|
Definition
130/10 in left ventricle
25/5 in the right ventricle |
|
|
Term
What is the treatment for acute heart failure? |
|
Definition
LMNOP
Loop diuretics, morphine, nitrates (dilates peripheral vasculature), oxygen, pressors (like dobutamine) and positioning (sit on edge of bed w/ legs down) |
|
|
Term
What medications are used to treat chronic heart failure? |
|
Definition
increase survival: ACE inhibitors, beta blockers, digoxin, spironolactone
Diuretics (no improved survival) |
|
|
Term
In which disorders do you see an inc of capillary pressure leading to edema? |
|
Definition
heart failure, also venous thrombosis locally, tumor, casting of a limb, restrictive clothing, etc. |
|
|
Term
In which disorders do you see a dec. in plasma proteins (dec. colloid oncotic pressure) leading to edema? |
|
Definition
nephrotic syndrome, liver failure, also protein malnutrition, small bowel protein loss |
|
|
Term
In which cases would you see increased capillary permeability (Kf) leading to edema? |
|
Definition
toxins, infections, burns, septic shock (inc. histamine and bradykinin in septic shock) |
|
|
Term
In which cases would you see an inc. interstitial fluid colloid osmotic pressure lead to edema? |
|
Definition
|
|
Term
What is the difference between pitting and non pitting edema in terms of the protein content of the fluid? |
|
Definition
pitting edema is mostly water (due to inc capillary pressure like in heart failure)
non-pitting edema is a lot of colloid in interstitial fluid (jello-like) - exudate (due to inc. capillary permeability or inc. colloid oncotic pressure in the interstitium) |
|
|
Term
What serum marker is helpful in assessing the appropriate oxygenation of tissues? |
|
Definition
|
|
Term
When does splitting of S2 normally occur? |
|
Definition
normal splitting occurs durign inspiration (aortic valve closes before the pulmonic)
a split S2 during expiration is NEVER normal |
|
|
Term
What heart sounds are considered benign when there is no evidence of disease? |
|
Definition
Split S1, Split S2 on inspiration, S3 heart sound in patients <40, early quiet systolic murmur |
|
|
Term
What are the most common causes of aortic stenosis? |
|
Definition
congenital bicuspid valve, senile/degenerative calcification, rheumatic heart disease, unicuspid valve, syphillis |
|
|
Term
Which phase in the pacemaker action potential determines the heart rate? |
|
Definition
phase 4 in the SA node. beta blockers dec. the heart rate
Sodium funny channels work here |
|
|
Term
Which phase of the cardiac action potential (cardiac muscle) do the Na channel blockers work (Class I antiarhythmics?) |
|
Definition
|
|
Term
What are the main toxicities for quinidine? |
|
Definition
cinchonism and torsade de pointes |
|
|
Term
What is the main drug used to treat Wolff-Parkinson White? |
|
Definition
Procainamide (a class IA antiarrhythmic). Amiodarone (class III agent) is also used |
|
|
Term
Which of the class I agents do you NOT want to give post MI and which do you want to give post MI? |
|
Definition
Class IC is contraindicated for post-MI
Class IB is Best for post-MI |
|
|
Term
What is the mechanism of adenosine? |
|
Definition
increase K+ out of cells hyperpolarizing the cell and decreases the Calcium influx. It is the drug of choice in diagnosing/abolishing supraventricular tachycardia. Is very short acting and basically stops your heart. extreme chest pain during those 15 seconds. |
|
|
Term
What is magnesium sulfate used for in cardiology? |
|
Definition
effective in torsade de pointes and digoxin toxicity |
|
|
Term
Low levels of which 2 ions in particular tend to predispose to arrhythmias? |
|
Definition
hypokalemia and hypomagnesemia |
|
|
Term
What is the length of a normal PR interval? |
|
Definition
less than 200ms (0.2sec) - one large box (b/c each tiny box = 0.04sec) |
|
|
Term
What is the normal length of a QRS complex? |
|
Definition
<120ms (.12sec) = 3 tiny boxes |
|
|
Term
How do you know if a rhythm on ECG is supraventricular? |
|
Definition
It will have a narrow QRS, meaning it has originated from the atria
if you have a long QRS, it has probably originated from the ventricle itself |
|
|
Term
Which disease caused by a tick bite can cause 3rd degree (complete) heart block? |
|
Definition
Lyme Disease (Borrelia burgdorferi) |
|
|
Term
Which drugs from the following classes are known to prolong the QT interval (thus predisposing to torsade de pointes)?
1) Anti-infection:
2) Anti-psychotics
3) Anti-HIV
4) Anti-Arrhythmic |
|
Definition
1) macrolides, chloroquine
2) haloperidol, risperidone
3) HIV protease inhibitors (-navirs)
4) class IA (quinidine), class III (K+ channel blockers such as sotalol, amiodarone, bretylium) |
|
|
Term
What is the mechanism of minoxidil? |
|
Definition
opens potassium channels and hyperpolarizes smooth muscle, resulting in relaxation of vascular smooth muscle |
|
|
Term
What are the deadly causes of acute chest pain that you should always rule out? |
|
Definition
aortic dissection (or dissecting aortic aneurysm), unstable angina, MI, tension pneumothorax, PE |
|
|
Term
What are some of the ECG changes seen in acute MI? |
|
Definition
ST segment elevation of at least 1mm in 2 contiguous leads, T wave inversion, new LBBB, new Q waves (at least 1 block wide or 1/3 height of the total QRS complex) |
|
|
Term
What is the initial treatment protocol for MI? |
|
Definition
MONA
morphine, oxygen, nitrates (dec. preload), aspirin |
|
|
Term
Which of the cardiomyopathies is most common? |
|
Definition
|
|
Term
What are some etiologies of dilated (congestive) cardiomyopathy? |
|
Definition
ABCCCD
Alcohol abuse, Beriberi (wet), Coxsackie B vrus myocarditis, chronc Cocaine use, Chagas disease, Doxorubicin toxicity. Also hemochromatosis, and peripartum cardiomyopathy, CHF
systolic disfunction is seen |
|
|
Term
What type of hypertrophy do you see in dilated cardiomyopathy? |
|
Definition
eccentric hypertrophy (sarcomeres added in series) |
|
|
Term
What type of hypertrophy do you see in hypertrophic cardiomyopathy? |
|
Definition
concentric hypertrophy (sarcomeres added in parallel) -- tangled, disarray of myocytes
see diastolic dysfunction |
|
|
Term
Does valsalva maneuver make hypertrophic cardiomyopathy murmur louder or softer? |
|
Definition
It makes it louder (this is different than what valsalva does to most murmurs) |
|
|
Term
What are the causes of restrictive/obliterative cardiomyopathy? |
|
Definition
sarcoidosis, amyloidosis, postradiation fibrosis, endocardial fibroelastosis (thick fibroelastic tissue in endocardium of young children), Loffler's syndrome (endomyocardial fibrosis w/ a prominent eosinophilic infiltrate) and hemochromatosis |
|
|
Term
What are the signs and symptoms of bacterial endocarditis? |
|
Definition
FROM JANE
Fever
Roth Spots (on retina)
Osler's nodes (tender raised lesions on finger or toe pads)
Murmur (new)
Janeway lesions (small erythematous lesions on palm or sole)
anemia
nailbed hemorrhage
emboli |
|
|
Term
What are the signs and symptoms of Rheumatic Fever? |
|
Definition
FEVERSS
Fever
Erythema marginatum
Valvular damage (vegetation and fibrosis)
ESR elevated
Red-hot joints (migratory polyarthritis)
Subcutaneous nodules
St. Vitus dance (chorea) |
|
|
Term
What are the Jones (Diagnostic) Criteria for Rheumatic Fever? |
|
Definition
Major criteria: JONES
Joints (migratory polyarthritis), Heart (O is a heart) pancarditis, Nodules (subcutanous aschoff nodules), Erythema marginatum (creeping skin rash), Syndenham chorea |
|
|
Term
What is Kussmaul's Sign vs. Pulsus paradoxus? |
|
Definition
Kussmaul's sign is JVD with inspiration (rt. sided heart failure)
Pulsus paradoxus is decreased SBP by more than 20 mmHG w/ inspiration |
|
|
Term
Which disease do you see more with Kussmaul's sign...constrictive pericarditis or cardiac tamponade? |
|
Definition
constrictive pericarditis |
|
|
Term
Which disease do you see more often with pulsus paradoxus... constrictive pericarditis or cardiac tamponade? |
|
Definition
|
|
Term
What is the most common primary heart tumor in an adult and in a child? |
|
Definition
adult: left atrial myxoma
child: rhabdomyomas (assoc. w/ tuberous sclerosis)
|
|
|
Term
What is the most common cardiac tumor overall? |
|
Definition
metastases (from melanoma and lymphoma commonly) |
|
|
Term
Under what circumstances might you see pulsus paradoxus (dec. SBP by more than 10 mmHg with inspiration)? |
|
Definition
cardiac tamponade, asthma, obstructive sleep apnea |
|
|
Term
What diseases might have Bell's palsy as a complication? |
|
Definition
My Lovely Belle Had An STD
Lyme Disease, Herpes zoster, AIDS, sarcoidosis, Tumors, Diabetes
|
|
|
Term
How do symptoms of a lesion to the cortical motor region of the face differ from a lesion of the facial nerve or nucleus?
|
|
Definition
Lesion in cortical motor face region --> paralysis of contralateral side of lower face
Lesion of facial nerve or nucleus --> paralysis or ipsilateral side of entire face |
|
|
Term
What is the hallmark sign of a general brainstem lesion? |
|
Definition
Alternating syndromes: with long tract symptoms on one side (i.e., hemiparalysis) and cranial nerve symptoms on the other |
|
|
Term
What causes and what are the symptoms of Weber syndrome? |
|
Definition
Midbrain infarction resulting from occlusion of the paramedian branches of the PCA.
Cerebral peduncle lesion--> contralateral spastic paralysis
Oculomotor nerve palsy --> ipsilateral ptosis, pupillary dilation, and lateral strabismus (eye looks down and out) |
|
|
Term
What are the causes and what are the symptoms of lateral medullary syndrome (Wallenberg syndrome)? |
|
Definition
Caused by occlusion of one of the PICAs causing unilateral infarct of lateral portion of rostral medulla.
Loss of PT over contralateral body (Spinothalamic tract damage)
Loss of PT over ipsilateral face (trigeminothalamic tract damage)
Hoarseness, difficulty swallowing, loss of gag reflex ( nucleus ambiguus: CN IX and X damage)
Ipsilateral Horner syndrome (descending sympathetic tract)
Vertigo, nystagmus, nausea/vomiting (vestibular nuclei damage)
Ipsilateral cerebellar deficits (i.e. ataxia, past pointing) due to inferior cereellar peduncle damage |
|
|
Term
A lesion of what artery can cause "locked-in syndrome"? |
|
Definition
Basilar artery (which supplies the superior pons) |
|
|
Term
What is the most common site of a berry aneurysm and what diseases are often associated w/ berry aneurysms? |
|
Definition
Anterior communicating arteries
PCKD, Marfans, HTN, Ehlers Danlos |
|
|
Term
What is the clinical triad seen in normal pressure hydrocephalus? |
|
Definition
Wet (urinary incontinence), wobbly (ataxia), and wacky (dementia) |
|
|
Term
What is the problem in communicating hydrocephalus? |
|
Definition
dec. CSF absorption by arachnoid villi, which can lead to inc. intracranaial pressure, papilledema, and herniation |
|
|
Term
What is the problem in a noncommunicating hydrocephalus? |
|
Definition
structural blockage of CSF circulation w/in the ventricular system |
|
|
Term
What are the treatments for overdose of heparin and warfarin? |
|
Definition
protamine sulfate for heparin overdose
Fresh frozen plasma for fast treatment of warfarin overdose, vitamin K for slow treatment of warfarin overdose |
|
|
Term
What are the five hereditary thrombosis syndromes? |
|
Definition
factor V leiden, Proten C deficiency, Protein S deficiency, Antithrombin deficiency, Prothrombin gene mutation |
|
|
Term
What are the longitudinal zones of the cerebellum starting with thte most medial? |
|
Definition
Vermis, intermediate (paravermal) zones (right and left), and lateral hemispheres (right and left)
|
|
|
Term
Describe the general flow of information through the cerebellum? |
|
Definition
Inputs (mossy and climbing fibers) --> cerebellar cortex --> purkinje fiber --> deep nuclei of verebellum --> output targets |
|
|
Term
What structure provides the major output pathway from the cerebellum? |
|
Definition
Bachium conjunctivum (AKA superior cerebellar peduncle) --> contraleteral VL of thalamus |
|
|
Term
Based on the primary source of information brought into the cerebellar cx, which cerebellar regions are referred to as the vestibulocerebellum, spinocerebellum, and cerebrocerebellum? (To which deep nuclei do these regions project?)
|
|
Definition
Vestibulocerebellum -- Flocculonodular lobe and vermis (--->fastigial)
Spinocerebellum -- Vermis and paravermal regions (-->fastigial and interposed)
Cerebrocerebellum -- lateral hemispheres (--> dentate)
|
|
|
Term
Motor control on which side of the body would be affected with a lesion on one side of the cerebellar hemisphere? |
|
Definition
Motor control ipsilateral to the side of the lesion would be affected (because the crebellum goes to the contralateral thalamus which goes to the cortex and then the corticospinal tract and finally to the body contralateral to the cortex) |
|
|
Term
Which neurological abnormalities can be attributed to damage of the spinocerebellum (vermis and paravermis)? |
|
Definition
this is more of the central area... postural instability, slurred/slowing of speech, hypotonia, and pendular knee jerk reflexes |
|
|
Term
What symtpoms are seen in anterior lobe(anterior vermis) syndrome? What is the most common cause? |
|
Definition
The most anterior portion of the vermis belongs to the legs.
Ataxia/dystaxia of legs (even when the trunk is supported) causing broad based staggering gait.
Chronic alcohol abuse --> thiamine deficiency-0> degeneration of cerebellar cx (starting at the anterior lobe) |
|
|
Term
What neurological deficits can be attributed to damage of the cerebrocerebellum (lateral hemisphere)? |
|
Definition
lack of coordination of volunatary mvmt with respect to both the timing and rate of the movement.
delays in initiating mvmts and trouble stopping movmvnets
dysmetria (imparied ability to control the distance, speed, and power of movement)
Intention tremor |
|
|
Term
What neurological deficits can be attributed to damage of the vestibulocerebellum (vermis and flocculonodular)? |
|
Definition
Disequilibrium: difficulty in maintaining balance
Abnormal eye movements |
|
|
Term
What is the most common cause of damage to the flocculonodular lobe? |
|
Definition
Medulloblastoma in childhood |
|
|
Term
What excitatory neurotransmitter is involved in pain? |
|
Definition
|
|
Term
Does the thalamus stimulate or inhibit the motor cortex? |
|
Definition
|
|
Term
Does the subthalamic nucleus ultimately stimulate or inhibit movement? |
|
Definition
it inhibits movement by activating the globus pallidus internal (which is a movement inhibitor by inhibiting the thalamus) |
|
|
Term
Does the substantia nigra pars compacta stimulate or inhibit movement? |
|
Definition
it stimulates movement (this is why with a nonfunctional one you get paucity of movement... as seen in Parkinsons) |
|
|
Term
What happens to movement if you lesion the subthalamic nucleus? |
|
Definition
contralateral hemiballismus |
|
|
Term
What are the C's of Huntington's Disease? |
|
Definition
CAG repeats, Chorea, Chromosome 4, crazy (dementia), caudate atrophy |
|
|