NEET Biology question
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
Solution
During joint diastole all four chambers of the heart are indeed relaxed (I is true), the tricuspid and bicuspid (mitral) valves are open so that blood can passively fill the ventricles (II is true), the semilunar valves remain closed because the ventricles are not ejecting blood (III is true), and blood does flow from
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