The pacemaker of the heart is:

Practice MCQ for SSC, UPSC, RRB Exams

A. AV node A.
B. SA node B.
C. Purkinje fibers C.
D. Bundle of His D.

Correct Answer: B সঠিক উত্তর: B

Explanation ব্যাখ্যা

The SA node is located in the right atrium and initiates the electrical impulses that trigger the heartbeat, making it the natural pacemaker of the heart.

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