A) in wall of right atrium
B) on the inter auricular septum
C) on inter ventricular septum
D) in wall of left atrium
Correct Answer: A
Solution :
Pace maker of the heart is situated on the wall of right atrium near the opening of superior vena cava. The SA node is a mass of neuro muscular tissue. Sometimes the SA-node may become damaged or defective. So, the heart does not function properly. This can be semidied by the surgical grafting of an artificial pace-maker in the chest of the patient.
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