NEET Zoology Cardiac Cycle MCQ Question
During the cardiac cycle, if the ventricular pressure reaches a maximum of 120 mmHg, what can be the expected pressure in the atria that causes the bicuspid and tricuspid valves to open?
Less than 120 mmHg
Exactly 120 mmHg
More than 120 mmHg
Exactly the same as semilunar valves pressure
Correct Answer
Detailed Explanation
During ventricular diastole, the ventricular pressure falls, allowing the bicuspid and tricuspid valves to open when the atrial pressure exceeds the reduced ventricular pressure. Hence, it is less than 120 mmHg.
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