During the cardiac cycle in mammals,the blood pressure in the aorta is greatest
A) during diastole.
B) when the atria contract.
C) when the aortic and pulmonary valves are closed.
D) during systole.
E) when the atrioventricular valves are open.

Question

Quizplus · Accepted Answer

During systole, the ventricles contract to push blood out of the heart and into the aorta, resulting in the highest blood pressure in the aorta during this phase of the cardiac cycle.

During the Cardiac Cycle in Mammals,the Blood Pressure in the Aorta