What Prevents Back Flow Of Blood During Contractor n? A)Valves In Heart B)Thick Muscular Walls Of Ventricles C)Thin Walls Of Atria D)All
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The atrioventricular valves prevent backflow of blood into the atria during ventricular contraction (systole), and the aortic/pulmonic (semilunar) valves prevent backflow of blood into the ventricles during ventricular relaxation (diastole).
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answer of this question will be (A) valves in heart
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