AIPMT PRELIMS2004Zoology-Human Physiology
AIPMT PRELIMS 2004 Zoology Cardiovascular System MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of -
A
Purkinje system
B
Sinoatrial node
C
Atrioventricular node
D
Atrioventricular bundle
Correct Answer
Option D
Detailed Explanation
The sinoatrial node is the natural pacemaker of the heart, and an artificial pacemaker is typically placed at this site to regulate heartbeats.
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