SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Veins have valves to
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prevent the veins from collapse
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prevent the back flow of blood
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restrict blood flow
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None of the above
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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: -The regular opening and closing of valves prevents backflow (blood that is flowing in reverse-also called venous reflux or insufficiency). If backflow occurs, blood can begin to pool in the veins, potentially damaging them. Most common venous disorders are caused by the backflow or venous insufficiency.
Detailed explanation-3: -Tricuspid valve: This valve has three leaflets. They allow blood to flow from the right atrium to the right ventricle. They also prevent blood from flowing backward from the right ventricle to the right atrium.
There is 1 question to complete.