Heart Valves and Unidirectional Blood Flow — NEET Biology
📚 Practice Concept📖 NCERT Source
The valves in the heart allows the flow of blood only in one direction, i.e., from the atria to the ventricles and from the ventricles to the pulmonary artery or aorta. These valves prevent any backward flow.
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QuestionPractice Question
Assertion (A): Heart valves ensure efficient pumping action of the heart. Reason (R): The valves in the heart allow unidirectional flow of blood from atria to ventricles and from ventricles to major arteries.
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