What Happens During Ventricular Diastole

Question

What happens during ventricular diastole?
A) The ventricles are filling with blood.
B) All semilunar valves are open.
C) Both AV valves are closed.
D) Blood is pumped to the lungs and systemic circulation.

Accepted Answer

During ventricular diastole, the ventricles are relaxed and filling with blood. Both the AV valves (tricuspid and mitral) are open, while the semilunar valves (pulmonary and aortic) are closed. Blood is not being pumped to the lungs or systemic circulation during this phase.