ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The valves..
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allow two way direction of blood in the heart
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prevent back-flow of blood
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prevent high pressure exerted in the vessels
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allow lower pressure of blood flow in the heart
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Explanation:
Detailed explanation-1: -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. Normal valves have 3 flaps (leaflets), except the mitral valve.
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