Question

Which of the following events do not occur during joint diastole?
(I). All $4$ chambers of heart are in relaxed state
(II). Tricuspid and bicuspid valves open
(III). Action potential is conducted from $SAN$ to $AVN$
(IV). Blood from the pulmonary veins and vena cava flows into the left and right ventricles respectively through the left and right atria
(V). The Semilunar valves are closed

• A. Only $V$
• B. Only $III$
• C. Only $IV$
• D. Only $I$ and $II$

Answer 1

Answer: (B)

Correct answer is (b) Only $III$