A) in the wall of left atrium
B) in the wall of right atrium
C) on inter-auricular septum
D) on inter-ventricular septum
Correct Answer: B
Solution :
Pace-maker lies in the wall of right atrium near the opening of the superior vena cava. The Sinoatrial node (SA node) is a mass of neuromuscular tissue. The heart beat originates from the SA node. The damaged or defective SA node can be remedeated by the surgical grafting of an artificial pace-maker.
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