what is valve present in veins
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valves are generally doors in veins and other organs. For example- there are two valves in heart...bicuspid valve and tricuspid valve..The main function of valve is to control blood flow.
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the simplest answer is that
valves are present in our vains as the blood is not under pressure. so valves ensure that the blood flow in only one direction.
valves are present in our vains as the blood is not under pressure. so valves ensure that the blood flow in only one direction.
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