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

Steven

31 Oct, 2025

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A » The sinoatrial (SA) node, often referred to as the heart's natural pacemaker, plays a crucial role in cardiac electrophysiology by initiating electrical impulses that set the rhythm and rate of your heartbeat. Located in the right atrium, it sends out signals causing the atria to contract, effectively coordinating heartbeats and ensuring blood circulates efficiently. It's the reason your heart keeps a steady beat!

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 regulates heart rate by producing impulses at a rate of 60-100 beats per minute, ensuring a consistent heartbeat. For example, during exercise, the SA node increases the heart rate to meet the body's increased oxygen demands.

David

31 Oct, 2025

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