Which valves prevent the backflow of blood from the ven... – Biology

Biologymedium · Past Paper

Which valves prevent the backflow of blood from the ventricles into the atria?

ASemilunar valves

BAtrioventricular valves

CAortic valves

DPulmonary valves

✓ Correct Answer: B — Atrioventricular valves

Atrioventricular (AV) valves, including the bicuspid and tricuspid valves, prevent blood from flowing back into the atria.

Share this question