Question

State whether the following statements are true or false.
Semilunar valves open during the ventricular diastole.

• A. True
• B. False

Answer 1

The correct option is B False

• During ventricular diastole, the ventricles relax and the ventricular pressure decreases rapidly. Due to the blood inertia, the blood flows out of the ventricles (for a short time) even when the pressure in large arteries exceeds the ventricular pressure.
  
• Immediately after the blood inertia is overcome, the elevated pressures in the aorta and the pulmonary artery push the blood back toward the ventricles to close the semilunar valves.

So, the correct option is 'False'.