Term
| What are the 4 types of arteries that were looked at in this lecure in dessending order based on size? |
|
Definition
|
|
Term
| What are the three layers of blood vessels? |
|
Definition
tunica intima
tunica media
tunica adventitia
[image] |
|
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Term
| what is the special name for simple squamous epithelium of blood vessels? |
|
Definition
|
|
Term
| what is present in the tunica intima? |
|
Definition
endothelium
basement membrane
subendothelial loose CT
internal elastic lamina (arteries) |
|
|
Term
| what is present in the tunica media? |
|
Definition
smooth muscle
elastic fibers/lamellae
recticular fibers
proteoglycans
external elastic lamina |
|
|
Term
| what is present in the tunica adventitia? |
|
Definition
fibroblasts
longitudinal collegen
elastic fibers
vasa vasorum |
|
|
Term
| What sections of the heart will we look at in slides? |
|
Definition
|
|
Term
| what are the projections that face the inside of the right ventricle? |
|
Definition
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Term
| what epithilaial layer covers the endocardium and the epicardium? |
|
Definition
| simple squamous epithelium |
|
|
Term
| what is the strucure of the tricuspid valve? |
|
Definition
endocardium surrounding dense irregular CT core
(valve is prevented from prolapse by chordae tendinae)
(time 20min) |
|
|
Term
| what type of artery is the aorta? |
|
Definition
|
|
Term
| what type of artery is the right coronary artery? |
|
Definition
|
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Term
| what are the distinguishing features of an elastic artery? |
|
Definition
inconspicuous internal elastic lamina
40-70 elastic lamellae
Weibel-Palade bodies in endothelium (TEM)
[image]
|
|
|
Term
| what are the distinguishing features of a muscular artery? |
|
Definition
Thick/Distinguishable internal elastic lamina
6-39 layers of smooth muscle
[image] |
|
|
Term
| what are the two stians used to higlight elastic fibers? |
|
Definition
Resorcin fuchsin
Pico-orsin |
|
|
Term
| what is the orientation of the smooth mucle in elastic arteries? |
|
Definition
each layer is at a 90 degree angle
(time 33) |
|
|
Term
| What are Musculo-Elastic arteries |
|
Definition
| transitional segments between elastic and muscular arteries |
|
|
Term
| Muscluar artery vs. Elastic artery image |
|
Definition
|
|
Term
| who has a relativly thicker adventitia elastic or muscular arteries? |
|
Definition
muscular
media and aventita are about the same size
(time 39 min) |
|
|
Term
| how many layers of smooth muscle are present in an arteriole? |
|
Definition
|
|
Term
|
Definition
small amount of smooth muscle
relativly no adventita
[image] |
|
|
Term
| what happens to the wall of the aorta between birth and age 25 |
|
Definition
smoothe muscle and elastic fibers are added to the tunica media causing it to increaese in size.
(time 53min) |
|
|
Term
| How do plaques form in muscular arteries? |
|
Definition
LDL move throught the intma
monocytes follow
moncytes swallow LDL to form Foam Cells
PDGF is secreated attracting smooth muscle cells
[image]
(time 55 min) |
|
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Term
| what are some signs of aging in an artery |
|
Definition
plaque formation
irregular distrobution of lamellae
spaces in the tunica media
IEL disrupted |
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