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Question Practice

What is the role of the atrioventricular node (AVN) in the cardiac cycle?

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MCQ_SA
CBSE
Class 11
Biology
Biology
Body Fluids and Circulation
Question Bank

What is the role of the atriov...

Single Answer MCQ
Q-00056418

What is the role of the atrioventricular node (AVN) in the cardiac cycle?

1

Generates the initial electrical impulse

2

Delays the impulse to allow ventricles to fill

3

Contracts the atria

4

Prevents backflow of blood

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