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Micro Final
Final Info
140
Other
Graduate
12/04/2011

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Cards

Term
What are the three layers that make up a blood vessel
Definition
Tunica intima, media and adventitia
Term
What cell type makes up the tunica intima endothelia in blood vessels
Definition
simple squamos
Term
Which layer of a blood vessel contains basemement membrane
Definition
tunica intima
Term
Which layer of blood vessel contains internal elastic lamina
Definition
tunica intima
Term
Which layer of blood vessel contains external elastic lamina
Definition
tunica media
Term
Which layer of blood vessel does NOT contain collagen
Definition
tunica intima
Term
What color is collagen in a trichrome stain
Definition
blue
Term
What two things does the tunica adventitia contain that supplies vessels and nerves
Definition
vasa vasorum and nervi vasorum
Term
What are the three types of arteries
Definition
Elastic, muscular and arterioles
Term
Which arteries are considered elastic
Definition
aorta and its largest branches
Term
Which arteries are considered muscular
Definition
medium sized/distributers
Term
Which arteries are considered arterioles and what is their role
Definition
those with <5 layers of smooth muscle cells; regulate blood flow into capillaries
Term
How to arterioles regulate capillary blood flow
Definition
via pre-capillary sphincter
Term
What diffuses via capillaries?
Definition
oxygen, CO2 and nutrients
Term
Which is the most numerous type of vessel in the body
Definition
capillary
Term
T/F A capillary is considered a vein
Definition
FALSE; neither artery or vein
Term
Which type of tissue do capillaries NOT supply
Definition
hyaline cartilage
Term
What are the three types of capillaries
Definition
continuous, fenestrated and discontinuous
Term
Which type of capillary does not have a COMPLETE basement membrane and why?
Definition
discontinuous- allows large molecules and cells to pass through gaps
Term
Which type of capillary has no gaps?
Definition
continous- EC joined by tight junctions
Term
Which tissues contain continuous capillaries
Definition
most; esp. muscle, brain and lungs
Term
Which type of capillary is found in intestine, glomeruli and endocrine glands
Definition
fenestrated
Term
What tissues do discontinuous capillaries supply?
Definition
Liver, spleen, lymph nodes, bone marrow, placenta
Term
Discontinuous capillaries are called _____________ in the liver and _____________ in other organs that they supply
Definition
sinusoids;sinuses
Term
The thin endothelial cells in continuous capillaries allow transport of:
Definition
gas
Term
T/F veins work in a high pressure system
Definition
False: low pressure
Term
What are the smallest type of veins and what do they lack
Definition
venules; tunica media
Term
What are venules lined with
Definition
endothelium
Term
Which type of veins contain valves for one-way flow
Definition
medium sized and large
Term
What are the three types of veins
Definition
venules, medium and large
Term
____________ veins contain thin collagenous and elastic tunica media
Definition
large
Term
____________ veins contain muscular tunica media
Definition
medium
Term
T/F: veins can be identified easily in microscopy because they are always perfectly round
Definition
False- not always perfectly round
Term
Which type of cells make up the endocardium
Definition
simple squamous
Term
Which part of the endocardium increases with animal size
Definition
subendocardial collagen
Term
What do heart valves contain
Definition
collagen, elastin and muscle
Term
What are heart valves covered in
Definition
endothelial/endocardial cells
Term
Which part of the heart is striated, uninucleated and contains intercalated disks
Definition
myocardium
Term
Which tissue of the heart conducts impulses to myocardium
Definition
purkinje fibers
Term
Why do purkinje fibers have pale eosinophilic cytoplasms
Definition
contain glycogen
Term
How many rings make up the cardiac skeleton and what type of tissue are they
Definition
4;fibrous
Term
What are the two other structures in the cardiac skeleton, other than the rings
Definition
fibrous triangle and septum
Term
Which species especially contains cartilagenous cardiac skeletons
Definition
meow
Term
Which species has osseous cardiac skeletons
Definition
moo
Term
What is the visceral pericardium also known as
Definition
epicardium
Term
What does the epicardium contain
Definition
adipose tissue, coronary arteries and mesothelium
Term
What heart structure is a thin collagen layer with mesothelium on both sides
Definition
pericardial sac
Term
What may the pericardial sac contain
Definition
adipose tissue
Term
T/F: lymphatic vessels contain valves
Definition
True
Term
T/F: lymphatic vessels contain erythrocytes
Definition
False
Term
Capillaries in the lymphatic system function to_______
Definition
pick up fluid, protein and cells from the interstitium
Term
What is different about capillaries particular to the lymphatic system
Definition
they are blind-ended
Term
Intestinal lacteals are _____
Definition
lymphatic capillaries
Term
What is the largest lymphatic vessel
Definition
thoracic duct
Term
Which type of lymphatic vessels empty lymph into large veins
Definition
larger
Term
T/F: lymphatic vessels are thick-walled
Definition
False
Term
T/F: lymphatic capillaries may have absent basement membranes
Definition
True
Term
Endothelial cells in lymphatic capillaries are______
Definition
discontinuous
Term
What are the two major components of cartilage
Definition
chondrocytes and matrix
Term
Which component of cartilage is the cellular component
Definition
chondrocytes
Term
What is the matrix of cartilage made of (three items)
Definition
glycosaminoglycans, territorial and interterritorial matrix
Term
T/F: Cartilage contains no vessels or nerves
Definition
True
Term
How do nutrients enter cartilage
Definition
diffusion
Term
T/F: pain can be felt in cartilage
Definition
False
Term
What are the two possible growth patterns in cartilage
Definition
appositional and interstitial
Term
Where does appositional growth in cartilage start
Definition
perichondrium (outer layer)
Term
Cartilage stem cells are made in the__________
Definition
perichondrium
Term
In what animals will you find cartilage interstitial growth
Definition
young growing ones
Term
Interstitial growth in cartilage expands from ______
Definition
within
Term
An isogenous group is define as ____________
Definition
multiple cells in a cluster
Term
What are the three types of cartilage
Definition
hyaline, elastic and fibrocartilage
Term
Which type of cartilage is known as glassy
Definition
hyaline
Term
What type of cartilage is the fetal skeleton made of
Definition
hyaline
Term
Where is hyaline cartilage found in an adult
Definition
articular surfaces of bone; nose, larynx, trachea
Term
Where is elastic cartilage found
Definition
ear
Term
Which two types of cartilage appear similar with routine stain
Definition
hyaline and elastic
Term
Where are elastic fibers found in elastic cartilage
Definition
between chondrocytes
Term
What does special staining allow you to see in elastic cartilage
Definition
elastic fibers
Term
What two cell types make up fibrocartilage
Definition
chondrocytes and collagen
Term
Which type of cartilage contains chondrocytes in rows
Definition
fibrocartilage
Term
What type of cartilage makes up IV disks, menisci and tendon/ligament-bone attachments
Definition
fibrocartilage
Term
What type of stain should be used to see elastic and fibrocartilage
Definition
H&E
Term
___________ are the cells that produce bone
Definition
osteoblasts
Term
Which bone cells are polygonal and align in rows along bone surfaces
Definition
osteoblasts
Term
What do osteoblasts mineralize in order to produce bone
Definition
osteoid
Term
___% of osteoblasts become embedded ______________
Definition
10; osteocytes
Term
T/F: osteocytes will clump and form isogenous groups
Definition
False- only one cell per lacuna
Term
How do osteocytes communicate between cells
Definition
via long cell processes
Term
Where do osteoclasts come from
Definition
bone marrow
Term
T/F: osteoclasts are multinucleated
Definition
true
Term
What structure allows osteoclasts to remove bone and what does this structure secrete
Definition
brush/ruffled border that secretes enzymes which digest bone
Term
__________ is the name of the depression in bone formed by osteoclasts
Definition
Howship's lacunae
Term
What is bone matrix made of
Definition
mineral and collagen
Term
What is bone matrix made of
Definition
hydroxyapatite crystal (calcium and phosphorus)
Term
What material gives bone its tensile strength
Definition
collagen
Term
What is required to see collagen under a microscope
Definition
polarized light
Term
This type of bone would be found during bone growth or repair
Definition
woven
Term
lamellar bone has _________ collagen fibers
Definition
parallel
Term
Osteons are defined as
Definition
cylinders of concentric lamellae
Term
What are located at the center of osteons
Definition
Haversion canals
Term
T/F: blood vessels and nerves are found within Haversian canal
Definition
True
Term
(woven/lamellar) bone is stronger
Definition
lamellar
Term
Both woven and lamellar bone can be classified as
Definition
compact or cancellous
Term
____________bone makes up cortex
Definition
compact
Term
What type of bone is found in medullary cavity
Definition
cancellous
Term
_________bone contains more marrow than bone
Definition
cancellous
Term
__________bone contains minimal marrow
Definition
compact
Term
The epiphysis is covered in ________
Definition
articular cartilage
Term
What structure in the bone is considered the growth plate
Definition
physis
Term
What bone structure's presence would indicate a growing animal
Definition
physis
Term
Where is metaphysis found
Definition
between diaphysis and epiphysis
Term
Which part of bone contains nutrient foramen
Definition
diaphysis
Term
Bone marrow becomes increasingly ________ with age
Definition
fatty
Term
Where are osteoprogenitor cells found
Definition
periosteum
Term
Which layer of bone is involved in repair and remodeling
Definition
periosteum
Term
What is physis made of
Definition
cartilage
Term
What type of growth is found in flat bones
Definition
intramembranous
Term
In endochondral ossification, what do bones begin as
Definition
cartilage models
Term
What are the three stages of cartilage becoming bone
Definition
grows, mineralizes then ossifies
Term
What makes up primary spongiosa
Definition
calcified cartilage and woven bone
Term
Lamellar bone is the single component of ____________ spongiosa
Definition
secondary
Term
______________ossification occurs in bones from condensed mesenchymal cells
Definition
intramembranous
Term
Which cells become osteoblasts in intramembranous ossification
Definition
osteoprogenitor
Term
T/F: cartilage is involved in intramembranous ossification
Definition
False
Term
How can new growth in bones be stimulated
Definition
any irritation of periosteum
Term
What determines bone density
Definition
weight bearing
Term
How can bone density be increased
Definition
remodeling
Term
What must precede bone deposition
Definition
bone removal
Term
What are the three types of joints
Definition
synarthroses, amphiarthroses and diarthroses
Term
how are bones connected in synarthroses joints
Definition
dense collagen
Term
What type of joint makes up sutures of skull
Definition
synarthroses
Term
Where are amphiarthroses joints
Definition
IV disks
Term
Diarthroses are __________ joints
Definition
synovial
Term
What are ends of bones covered by in diarthroses
Definition
hyaline cartilage
Term
What produces synovial fluid
Definition
synoviocytes
Term
What are two functions of synovial fluid
Definition
lubricate joint and provide nutrients to cartilage
Term
5 basic Fxns of lymphatic system
Definition
transport of materials
filtration of lymph and blood
phagocytosis of foreign material
production of defensive cells
production of Ig's
Term
3 normal cellular components of lymph tissue
Definition
lymphocytes, plasma cells and antigen presenting cells
Term
What lymph tissue is found in GI, urogenital and resp. tracts
Definition
diffuse unencapsulated or dense unencapsulated
Term
Which type of lymphatic tissues contain lymphocytes, plasma cells and macrophages and are found in higher numbers in farm and other "outside" animals
Definition
diffuse unencapsulated or dense unencapsulated
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