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AIPMT PRELIMS2002Zoology-Human Physiology

AIPMT PRELIMS 2002 Zoology Cardiovascular System MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Impulse of heart beat originates from :-

A

S.A. Node

B

A. V. Node

C

Vagus Nerve

D

Cardiac Nerve

Correct Answer

Option A

Detailed Explanation

The sinoatrial (S.A.) node is known as the natural pacemaker of the heart, where the impulse for the heartbeat originates.

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