In the cardiac cycle,
A)the right atrium and the right ventricle contract simultaneously.
B)the left atrium contracts before the right atrium.
C)all four chambers of the heart contract at the same time.
D)all four chambers of the heart are in diastole at the same time.

Question

Quizplus · Accepted Answer

During the cardiac cycle, there is a brief period when all four chambers of the heart are in diastole, allowing the heart to fill with blood.

In the Cardiac Cycle