NEET UG BIOLOGY MCQ: BODY FLUIDS AND CIRCULATION

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The valves in the heart allows the blood flow in which direction? I. From atria to ventricles II. From ventricles to pulmonary artery III. From pulmonary artery to aorta Choose the correct option

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Correct option: A

I and II

Option A (I and II) is correct because the valves in the heart ensure unidirectional blood flow from atria to ventricles and from ventricles to the pulmonary artery (or aorta).

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