Zoology-Cardiac Cycle
NEET Zoology Cardiac Cycle MCQ Question
Type: MCQ-diagram based-Easy-Class 11
In a diagram depicting the cardiac cycle, if the semilunar valves are shown to be closed and the bicuspid and tricuspid valves are open, what phase of the cardiac cycle is being illustrated?
A
Ventricular diastole
B
Ventricular systole
C
Atrial systole
D
Isovolumetric contraction
Correct Answer
Option A
Detailed Explanation
During ventricular diastole, the ventricles relax, causing the semilunar valves to close and the bicuspid and tricuspid valves to open, allowing blood to flow from the atria into the ventricles.
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