In one cardiac cycle, when the ventricles are in systole, the atria are in:
A)Diastole
B)Systole
C)systole followed by diastole
D)diastole followed by systole

Question

Quizplus · Accepted Answer

During one cardiac cycle, the atria and ventricles alternate between systole (contraction) and diastole (relaxation). When the ventricles are in systole, the atria are in diastole, allowing them to fill up with blood from the veins. This is important because it ensures that there is enough blood in the atria to be pumped into the ventricles when they contract during the next phase of the cycle. Therefore, the best choice is A.

In One Cardiac Cycle, When the Ventricles Are in Systole