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Which of the following events do not occ...

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 venae cavae flows into the left and right ventricles respectively through the left and right atria
V. The semilunar valves are closed

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Which of the following events do not occur during joint diastole ? (A) All four chamber of heart are in relaxed state (B) Atrial repolarization valve open (C ) Action potential is conducted from SAN to AVN (D) Blood from the pulmonary veins and vena cava flows into the left and right ventricles respectively through the left and right atria (E ) The semilunar valves are closed

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