44. Which of the following statements about blood vessels is incorrect? a. More than % 60 of the blood in our body is found in the veins. b. Muscular arteries and arterioles have multiple layers of elastin fibers which gives them recoil-like property. c. Arterioles provide the greatest resistance to the blood flow. d. Veins have valves to prevent backflow of blood. e. Regulations of diameters (vasoconst riction/vasodilation) of arterioles is done by increased/decreased sympathetic nervous system activity.

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44. Which of the following statements about blood vessels is incorrect? a. More than % 60 of the blood in our body is found in the veins. b. Muscular arteries and arterioles have multiple layers of elastin fibers which gives them recoil-like property. c. Arterioles provide the greatest resistance to the blood flow. d. Veins have valves to prevent backflow of blood. e. Regulations of diameters (vasoconst riction/vasodilation) of arterioles is done by increased/decreased sympathetic nervous system activity.

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The incorrect statement about blood vessels is: b. Muscular arteries and arterioles have multiple layers of elastin fibers which gives them recoil-like property. Explanation: Muscular arteries and arterioles do not have multiple layers of elastin fibers. Instead, they have more smooth muscle and less elastin compared to elastic arteries. The recoil-like property is primarily found in elastic arteries, such as the aorta, which have multiple layers of elastin fibers.

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