Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?
A)Left atrioventricular valve
B)Aortic semilunar valve
C)Right atrioventricular valve
D)Pulmonary semilunar valve
E) None of these answers is correct.

Question

Quizplus · Accepted Answer

The aortic semilunar valve prevents the backflow of blood into the left ventricle when the ventricles relax by closing off the opening to the aorta. This ensures that blood flows only in the forward direction from the left ventricle to the rest of the body. The other valves listed do not function in this manner.

Which Valve Prevents the Backflow of Blood into the Left