Which of the events below does not occur when the semilunar valves are open?
A) Ventricles are in diastole.
B) Ventricles are in systole.
C) Blood enters pulmonary arteries and the aorta.
D) AV valves are closed.

Question

Quizplus · Accepted Answer

When the semilunar valves are open, the ventricles are in systole, not diastole. During this phase, blood is ejected into the pulmonary arteries and aorta, and the AV valves are closed to prevent backflow into the atria.

Which of the Events Below Does Not Occur When the Semilunar