Pacemaker cells are specialized cardiac cells that generate and regulate the electrical impulses responsible for initiating and maintaining the rhythmic contractions of the heart. These cells are primarily located in the sinoatrial node, serving as the heart's natural pacemaker by setting the pace for the entire cardiac cycle.

Pacemaker Cells

Pacemaker cells

specialized cardiac cells

Electrical impulses are rapid signals transmitted along the nerve fibers, enabling communication between neurons and other cells. They are crucial for the functioning of the nervous system, facilitating responses to stimuli and coordination of bodily functions.

electrical impulses

rhythmic contractions

The sinoatrial node, often referred to as the heart's natural pacemaker, is a group of specialized cells located in the right atrium that initiates the electrical impulses responsible for setting the rhythm of the heartbeat. It plays a crucial role in maintaining the heart's regular rhythm and rate, adapting to the body's needs by responding to signals from the autonomic nervous system.

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