Human Physiologybody Fluids And Circulation 2-P-3

Question: Which heart valves close during ventricular systole to prevent backflow of blood into the atria?

A) Tricuspid and mitral valves

B) Aortic and pulmonary valves

C) Atrioventricular (AV) valves

D) Semilunar valves

Answer: Tricuspid and mitral valves



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