HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Valves in veins
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support them
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protect them
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prevent the backward movement of blood
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provide them elesticity
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Explanation:
Detailed explanation-1: -Final answer:The valve which prevents back flow of blood in the veins is Semilunar valve .
Detailed explanation-2: -Heart valves control the flow of blood so that it moves in the right direction. The valves prevent blood from flowing backward.
Detailed explanation-3: -If gravity or muscle contractions try to pull the blood backward or if blood begins to back up in a vein, the flaps are pushed closed, so the blood does not flow backward. Thus, valves help the return of blood to the heart-by opening when the blood flows toward the heart and closing when blood might flow backward.
There is 1 question to complete.