Q. Which of the following events do not occur during joint diastole? I. All four-chamber are in relaxed state II. Tricuspid and bicuspid are open III. Semilunar valves are closed IV. Blood from the pulmonary veins and vena cava flows into the left and right ventricles, respectively through the left and right atria The correct option containing correct choice is
A) Only I
B) Only III
C) II and IV
D) None of these
Explanation
In the cardiac cycle, the first stage begins with the joint diastole. In that, four chambers of the heart are in relaxed state. As the tricuspid and bicuspid valves are open, blood from the pulmonary veins and vena cava flows into the left and right ventricle respectively, through the left and right atria. The semilunar valves are closed at this stage
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.