what prevents backflow of blood inside the heart during contraction ? ____________
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Answered by
3
Answer:
The atrioventricular (AV) valves separate the atria from the ventricles on each side of the heart and prevent backflow of blood from the ventricles into the atria during systole.
Answered by
13
Answer:
valves in heart
Explanation:
valves is ensure that bloods does not flow backwards win the atria or ventricles contract .
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