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Ch. 21
Medical Microbiology
25
Biology
Undergraduate 2
04/30/2013

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Cards

Term
What constitutes the upper respiratory system?
Definition
Mouth, nose, nasal cavity, sinuses, pharynx, epiglottis, larynx
Term
What constitutes the lower respiratory system?
Definition
Trachea, bronchi, bronchioles, lungs, alveoli
Term
What are some natural defenses of the respiratory tract?
Definition
Nasal hair, cilia, mucus, involuntary responses (coughing, sneezing, swallowing), macrophages, IgA
Term
What are some causes of the common cold?
Definition
Rhinovirus, Cornavirus, Adenovirus
Term
Why do we still have the common cold?
Definition
over 200 different viruses
Term
What are some causes of otitis media?
Definition
Streptococcus pneumoniae
Haemophilus influenzae
Term
What can cause chronic otitis media?
Definition
Biofilm bacteria: fluid remains in middle ear for a long period of time
Term
What bacteria can cause a throat infection?
Definition
Streptococcus pyogenes
Term
What are some virulence factors for Streptococcus pyogenes?
Definition
Polysaccharides, Spiky M protein, Capsule, Streptolysins (beta-hemolysis), Erythrogenic toxin
Term
What is the cause of diptheria?
Definition
Corynebacterium diptheriae
Term
What causes the disease state of diptheria?
Definition
Pseudo-membrane forms
A-B toxin
Term
What is the cause of whooping cough?
Definition
Bordetella pertussis
Term
What damage does RSV do to the respiratory system?
Definition
Produces giant multinucleated cells in the respiratory tract
Symptoms: coughing, wheezing, dyspnea
Term
What age group is most affected by RSV?
Definition
Newborns
Term
What are the causes and pathogenesis of influenza?
Definition
Influenza A
Influenza B
Influenza C
Hemagglutinin
Neuramindase
Term
What is the difference between antigenic shift and antigenic drift?
Definition
Antigenic shift:gene re-assortment
Antigenic drift: mutation of genes
Term
Which influenza strains undergo antigenic shift versus antigenic drift?
Definition
Type A: antigenic shift
Type B: antigenic drift
Type C: None
Term
Which Hemagglutinin and Neuramindase subtypes can infect humans?
Definition
H1, H2, H3
N1, N2
Term
What is the cause of tuberculosis?
Definition
Mycobacterium tuberculosis
Term
What are some unique characteristic of Mycobacterium tuberculosis?
Definition
Acid-fast bacterium
Mycolic acid
Waxy coating
Term
What is the difference between primary, secondary, and disseminated tuberculosis?
Definition
Primary: hidden infection
Secondary: Reactivation
Disseminated: outside of lungs
Term
What is a bacterial cause of pneumonia?
Definition
Streptococcus pneumoniae
Term
How does mycoplasma pneumonia differ from other causes of pneumonia?
Definition
Walking pneumonia
No cell wall
Term
What is a viral cause of pneumonia?
Definition
Hantavirus
Term
What are some causes of nonsocial-acquired pneumonia?
Definition
Streptococcus pneumonia
Klebsiella pneumonia
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