Q » What is the function of the sinoatrial node in cardiac electrophysiology?

Steven

31 Oct, 2025

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A » The sinoatrial node, often called the heart's natural pacemaker, is crucial in cardiac electrophysiology. It generates electrical impulses that initiate each heartbeat, setting the pace and rhythm for the entire heart. Located in the right atrium, it ensures that the heart beats in a coordinated and efficient manner, allowing blood to be pumped effectively throughout the body. Without its precise function, the heart's rhythm would be irregular and inefficient.

Michael

31 Oct, 2025

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A »The sinoatrial node, or SA node, acts as the heart's natural pacemaker, generating electrical impulses that trigger cardiac contractions. Located in the right atrium, it initiates the heartbeat, setting the heart rate and coordinating the cardiac cycle. For example, during exercise, the SA node increases the heart rate to meet the increased oxygen demand.

David

31 Oct, 2025

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