Zoology-Cardiac Cycle
NEET Zoology Cardiac Cycle MCQ Question
Type: MCQ-fact-Medium-Class 11
What happens to the semilunar valves during ventricular diastole?
A
They close to prevent backflow of blood.
B
They open to allow blood flow into the ventricles.
C
They remain open to continuously drain blood.
D
They help push blood into the atria.
Correct Answer
Option A
Detailed Explanation
During ventricular diastole, the ventricular pressure falls, causing the semilunar valves to close, which prevents the backflow of blood into the ventricles.
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