PATHOLOGY MCQ
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is/are true of an arteriole?One, some or all answers could be correct?
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It is a small artery
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It connects arteries to capillaries
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It contains smooth muscle that can contract and relax
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It controls blood flow to different organs by changing its diameter
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Explanation:
Detailed explanation-1: -Arterioles contribute to maintaining mean arterial pressure and tissue perfusion as they are the important site of total peripheral resistance. By increasing or decreasing the diameter, they also play a principal role in regulating blood flow in an organ or tissue-specific manner.
Detailed explanation-2: -Which one of the following statements is TRUE regarding arterioles and arteries? Arterioles are smaller and have less smooth muscle than arteries.
Detailed explanation-3: -Arterioles are tubes with thick walls of muscle that can adjust the amount of space they have inside. This allows them to keep your blood pressure at a certain level and control how much blood flows through your arterioles.
There is 1 question to complete.