Question

During joint diastole

• A. Tricuspid and bicuspid valves are open
• B. Semilunar valves are closed
• C. All the four chambers of heart are in a relaxed state
• D. All of the above

Answer 1

Answer: (D)

All of the above

• During joint diastole, both atria and ventricles are in a relaxed state.
• During this phase, the right auricle receives deoxygenated blood from superior and inferior vena cava and left auricle receives oxygenated by the pulmonary vein.
• The AV valves ( both tricuspid and bicuspid valves) between auricle and ventricle remain open and blood flows freely from auricle to ventricle while semilunar valves are closed.

So the correct answer is option D.