TEST y blood vessels whose walls permit exchange between blood and surrounding i
ID: 268079 • Letter: T
Question
TEST y blood vessels whose walls permit exchange between blood and surrounding interstitial fluids are: I. The onl the ?a. arterioles b venules c. capillaries d. a, b, and c are correct 2. The unidirectional flow of blood in venules and medium sized veins is maintained by: a. the muscular walls of the veins b. pressure from the left ventricles c. arterial pressure the presence of valves 3. The "specialized" arteries that are able to tolerate the pressure shock produced each time ventricular systole occur and blood leaves the heart are: a. muscular arteries b. elastic arteries c. arterioles d. fenestrated arteries Of the following blood vessels, the greatest resistance to blood flow occurs in the: 4. a. veins b. capillaries c. venules d. arteriolesExplanation / Answer
Q1:- Option c
Explanation:- Capillaries are blood vessels whose walls permit exchange between blood and surrounding interstitial fluid.
Q2;- Option D
Explanation:- The unidirectional flow of blood in vennules and medium sized veins is due to the presence of valves.
Q3:- Option B
Explanation:- Elastic arteries are able to tolerate pressure shock during ventricular systole when blood leaves heart.
Q4:- Option B
Explanation:- Capillaries are long and have short diameter that results in greatest resistance to blood flow
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