Which statement correctly identifies the phase of the cardiac cycle that occurs when the pressure in the ventricles is lower than the pressure in the great arteries but greater than the pressure in the atria?
A) Passive ventricular filling
B) Period of ejection
C) Period of isovolumetric contraction
D) Active ventricular filling

Question

Quizplus · Accepted Answer

During the period of isovolumetric contraction, the pressure in the ventricles increases as they contract, but it is not yet high enough to open the semilunar valves and eject blood into the great arteries. This phase occurs after the atria have finished filling the ventricles and the atrioventricular valves have closed, but before the ventricular pressure exceeds the pressure in the great arteries, allowing for ejection.

Which Statement Correctly Identifies the Phase of the Cardiac Cycle