DPT 712: VASCULATURE EXAM ACTUAL QUESTIONS AND CORRECT ANSWERS 100% GUARANTEED PASS
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Course
DPT 712
Institution
DPT 712
DPT 712: VASCULATURE EXAM ACTUAL QUESTIONS AND CORRECT ANSWERS 100% GUARANTEED PASS
Types of Blood Vessels
a.Arteries: Transport blood under high pressure
b.Arterioles: Regulating conduits
a.Amount of blood moves into capillaries
c.Capillaries: Nutrient exchange
d.Venules: Collect blood from
...
inner layer; composed of simple squamous epithelium (is an endothelial layer), plus a
supporting basement membrane
tunica media
middle layer; composed largely of smooth muscle tissue, site of inflammatory injury
leading to plaque
tunica externa
outer layer; composed of connective tissue
functions of arteriolar side
, serve as low-resistance system to allow easy movement of blood to capillary beds
-"pressure reservoir" for maintaining blood flow during ventricular diastole
arteries
transport blood under high pressure, have strong vascular walls and tolerate high
velocities
2 types: elastic and muscular
elastic arteries
closer to the heart; allow stretch as blood is pumped into them and recoil when
ventricles relax, maintains blood flow during diastole
muscular arteries
farther from the heart; have more smooth muscle in proportion to diameter; can alter
vessel diameter and hence flow rate.
arterioles
1. 20−30 µm in diameter
2.They provide the greatest or the smallest resistance to blood flow
3.The control blood flow through the capillaries by changing their cross sectional area
4.Cross Sectional Area =
A = Πr2 [r=radius]; Π is a constant, r varies
D= r X 2
capillaries
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