PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following increases blood flow?
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an increase in blood viscosity
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an increase in blood volume
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an increase in blood vessel length
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an increase in blood vessel diameter
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Explanation:
Detailed explanation-1: -In the venous system, constriction increases blood pressure as it does in arteries; the increasing pressure helps to return blood to the heart. In addition, constriction causes the vessel lumen to become more rounded, decreasing resistance and increasing blood flow.
Detailed explanation-2: -Answer and Explanation: Of the listed possibilities the one that would increase the rate of flow in blood vessels is decreasing the length and increasing the diameter of the blood vessels. By increasing the diameter more blood will be able to flow through the veins.
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