Atria contract _____.
A)just prior to the beginning of diastole
B)during diastole
C)immediately after systole
D)during systole

Question

Quizplus · Accepted Answer

Atria contract during diastole, which is the phase of the cardiac cycle when the heart is relaxed and fills with blood. During diastole, the atria contract to push blood into the ventricles before the ventricles contract (systole) to pump blood out of the heart.

Atria Contract _____