What do the valves in the heart do?

What do the valves in the heart do?
  1. Allow blood flow in both directions
  2. Prevent any backward flow
  3. Allow blood flow only in the ventricles
  4. Allow blood flow only in the atria

Solution

The valves in the heart allow 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, and prevent any backward flow.

Asked in: NCERT

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