What allows the blood to move freely to the ventricles during the cardiac cycle?

What allows the blood to move freely to the ventricles during the cardiac cycle?
  1. The closure of the tricuspid and bicuspid valves
  2. The opening of the tricuspid and bicuspid valves
  3. The contraction of the ventricles and atria
  4. The relaxation of the ventricles and atria

Solution

The tricuspid and bicuspid valves are pushed open by the pressure in the atria, allowing the blood to move freely to the ventricles.

Asked in: NCERT

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