During one cardiac cycle:
A)the atria contract together,followed by the ventricles contracting together
B)the ventricles contract together,followed by the atria contracting together
C)the right atrium contracts first,followed by the left atrium and then the ventricles
D)the left atrium contracts first,followed by the right atrium and then the ventricle

Question

Quizplus · Accepted Answer

During a cardiac cycle, the atria contract together first (atrial systole), followed by the ventricles contracting together (ventricular systole).

During One Cardiac Cycle