Question

Explain the following event of cardiac cycle with respect to type of valves and duration:

Joint diastole

Answer 1

1. Type of Valves: During joint diastole, the AV valves (mitral and tricuspid) are open, allowing passive blood flow from the atria into the ventricles. The semilunar valves (aortic and pulmonary) are closed to prevent backflow from the arteries into the ventricles.
2. Duration: Joint diastole lasts about 0.4 seconds.