Why is a relatively large percentage of blood (in excess of need) sometimes directed to the skin?
A) to eliminate wastes
B) to eliminate heat
C) to pick up nutrients
D) to cleanse the blood
E) to produce vitamin D
Correct Answer:
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Q4: The maximum pressure exerted in the arteries
Q5: What is the inner most layer of
Q6: What vasoactive chemicals do arteriolar endothelial cells
Q7: What provides arteries with tensile strength?
A)elastin fibers
B)collagen
Q8: Flow rate of blood through a vessel
Q10: The factors that affect flow rate through
Q11: The major determinant of resistance to blood
Q12: How thick are capillary walls?
A)1 micrometer
B)10 micrometers
C)100
Q13: The extent of contraction of arteriolar smooth
Q14: While measuring blood pressure with a sphygmomanometer,where
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