Which is the correct sequence of events of the cardiac cycle?
A) Ventricular filling → isovolumetric contraction → isovolumetric relaxation → ventricular ejection
B) Ventricular filling → isovolumetric relaxation → isovolumetric contraction → ventricular ejection
C) Ventricular filling → ventricular ejection → isovolumetric contraction → isovolumetric relaxation
D) Ventricular filling → isovolumetric relaxation → ventricular ejection → isovolumetric contraction
E) Ventricular filling → isovolumetric contraction → ventricular ejection → isovolumetric relaxation

Question

Quizplus · Accepted Answer

The correct sequence of events in the cardiac cycle is ventricular filling, followed by isovolumetric contraction (where the ventricles contract with no volume change because all valves are closed), then ventricular ejection (where blood is pushed out of the ventricles), and finally isovolumetric relaxation (where the ventricles relax with no volume change before the mitral and tricuspid valves open to allow ventricular filling again).

Which Is the Correct Sequence of Events of the Cardiac