Which statement correctly describes events during cardiac cycle?

Question

Quizplus · Accepted Answer

At least one pair of cardiac valves is closed in every phase of the cardiac cycle to ensure unidirectional flow of blood. Option A is incorrect as atrial systole precedes ventricular systole. Option C is incorrect as there is a phase of the cycle (isovolumetric relaxation) where no blood flows. Option D is incorrect as the pressure in the atria is higher during atrial systole compared to the pressure in the ventricles.

Which Statement Correctly Describes Events During Cardiac Cycle