In a patient,the cardiac pacemaker stops func | vedclass

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(B) The heart's natural pacemaker is the Sinoatrial $(SA)$ node,which is located in the right atrium. It generates electrical impulses that initiate t

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$SA$ node

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(B) The heart's natural pacemaker is the Sinoatrial $(SA)$ node,which is located in the right atrium. It generates electrical impulses that initiate the heartbeat and regulate the rhythm of the heart. An artificial pacemaker is implanted to perform the same function as the $SA$ node when the natural pacemaker fails to maintain a normal heart rate. Therefore,the function of an artificial pacemaker is similar to that of the $SA$ node.

In a patient,the cardiac pacemaker stops functioning. The doctor decides to implant an artificial pacemaker. Its function is similar to which of the following?

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