NEET2022Zoology-Human Physiology
NEET 2022 Zoology Circulatory System MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which one of the following statements is correct?
A
Blood moves freely from atrium to the ventricle during join diastole.
B
Increased ventricular pressure causes closing of the semilunar valves.
C
The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction.
D
The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria.
Correct Answer
Option A
Detailed Explanation
During joint diastole, blood flows freely from the atria to the ventricles as the AV valves are open.
Found an issue with this question?