Toward the end of systole, as repolarization starts (indicated by the T wave), the ventricles begin to relax. Which of the following will occur next?

Question

Quizplus · Accepted Answer

As the ventricles relax and their pressure falls below that of the arteries, the arterial pressures exceed ventricular pressures, leading to the closure of the semilunar valves to prevent backflow of blood into the ventricles.

Toward the End of Systole, as Repolarization Starts (Indicated by the T