For ___________ of the cardiac cycle,all four chambers are in diastole together.
A)none
B)one-third
C)one-quarter
D)one-half
E)three-quarters

Question

Quizplus · Accepted Answer

During one-half of the cardiac cycle, all four chambers of the heart are in diastole together. This is because during this period, both atria and ventricles are relaxed, and the blood flowing from the veins into the atria fills the ventricles passively. This is the filling phase of the cardiac cycle and constitutes diastole.

For ___________ of the Cardiac Cycle,all Four Chambers Are in Diastole