ANP 1105 Final Exam Test with Verified Solutions 2024/2025 GRADED A
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Course
ANP 1105
Institution
ANP 1105
ANP 1105 Final Exam Test with Verified SolutionsANP 1105 Final Exam Test with Verified SolutionsANP 1105 Final Exam Test with Verified SolutionsANP 1105 Final Exam Test with Verified SolutionsANP 1105 Final Exam Test with Verified SolutionsANP 1105 Final Exam Test with Verified SolutionsANP 1105 Fi...
1. What are the 3 layers of blood vessels? - ANS -Tunica intima,
tunica media and tunica externa
2. Innermost tunica intima - ANS -Simple squamous epithelium to
allow a low friction surface
3. Middle tunica media - ANS -Smooth muscle and elastic tissue to
control the diameter
4. Outermost tunica externa - ANS -Nerve and elastic fibers
5. Vasa vasorum - ANS -Tiny blood vessels that supply blood for
larger ones
,6. Vasoconstriction - ANS -Smooth muscle constricts to decrease the
diameter
7. Vasodilation - ANS -Smooth muscle relaxes to increase the
diameter
8. Elastic arteries - ANS -Thick walled and near the heart. They have
the largest lumens and are considered to be the conducting
vessels (send blood from heart to medium arteries)
9. Atherosclerosis - ANS -Hardening of the arteries. Blood flow
gushes/trickles as the heart beats, causing the vessel walls to
weaken or eventually balloon out (aneurysm), or burst
10. Muscular arteries - ANS -Considered to be the distributing
vessels (deliver blood to organs). Diameter ranges greatly
11. Arterioles - ANS -The resistance vessels: diameter
determines blood flow to capillaries as a mechanism of
, homeostasis that responds to neural, hormonal, and chemical
influences
12. Capillaries - ANS -Microscopic vessels with thin walls. They
allow the exchange of gasses, nutrients and hormones between
the blood and the interstitial fluid (then to the tissues)
13. Continuous capillaries - ANS -Least permeable and most
common
14. Fenestrated capillaries - ANS -Fenestrations increase
permeability
15. Sinusoid capillaries - ANS -Most permeable to allow large
cells to pass. Incomplete basement membrane and large
intercellular cleft
16. Capillary beds - ANS -Connections between terminal
arterioles and postcapillary venules. True capillaries are the
, exchange vessels and the vascular shunt (thoroughfare channel)
bypasses tissue cells
17. Precapillary sphincter - ANS -A smooth muscle cuff that
regulates blood flow (like a valve)
18. Veins - ANS -Return blood to the heart from the venules.
Have thin walls because of the low pressure, and large lumens so
that blood can be returned to the heart at the same rate that it is
pumped out
19. Venous valves - ANS -Prevent blood from flowing
backwards, made from folds of tunica intima and are mostly in the
lower limbs
20. Venous sinuses - ANS -Specialized veins with thick
endothelium walls (example is the coronary sinus)
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