HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The function of valves in the human circulatory system is to
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stimulate the heart beat.
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accelerate the flow of blood.
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prevent the backward flow of blood.
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serve as a cushion to prevent friction
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Explanation:
Detailed explanation-1: -Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood. Valves are actually flaps (leaflets) that act as one-way inlets for blood coming into a ventricle and one-way outlets for blood leaving a ventricle.
Detailed explanation-2: -Mitral Valve Prevents the back flow of blood from the left ventricle to the left atrium.
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