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13y ago

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How does control of the heart beat occur?

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What node does the heart beat originate?

The heart's beat originates from the sinoatrial (SA) node, which is located in the right atrium. This natural pacemaker generates electrical impulses that initiate each heartbeat, causing the atria to contract and pump blood into the ventricles. The impulses then travel to the atrioventricular (AV) node, which coordinates the contraction of the ventricles.


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