An artificial pacemaker can be implanted in patients whose natural pacemaker is malfunctioning,causing an excessively slow or irregular heartbeat.In order for the artificial pacemaker to ensure proper cardiac rhythm,the electrical leads should be implanted
A) in the middle of the left ventricle.
B) in the brain.
C) in the middle of the aorta.
D) in the wall of the right atrium.
E) at the atrioventricular node.

Question

Quizplus · Accepted Answer

The electrical leads of an artificial pacemaker should be implanted in the wall of the right atrium, near the natural pacemaker called the sinoatrial (SA) node. This allows the artificial pacemaker to detect the heart's electrical activity and deliver a small electrical signal to stimulate a heartbeat, if necessary. The other choices are incorrect as they do not correspond to the location of the natural pacemaker or the heart's electrical conduction system.

An Artificial Pacemaker Can Be Implanted in Patients Whose Natural