Question

what do valves do in the heart.
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Answer 1

Answer:

valves prevent deoxygenated blood from mixing with oxygenated blood...

Blood enters the ventricles from atriums through valves..

hope it helps you..

Answer 2

The valves prevent backward of flow

valves are located in end of lower chambers

As the heart contacts the valves open and when heart relaxes the valves close

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