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What is the atrioventricular node?
Quick Answer
The atrioventricular node, or AV node, is a cluster of heart cells that slows and relays electrical signals between the atria and ventricles.
The Full Story
The AV node is a key part of the heart’s electrical conduction system. It receives the impulse from the sinoatrial node and briefly delays it before passing it to the ventricles, allowing the atria to contract first and fill the ventricles with blood. This delay is crucial for coordinated pumping. Damage or disease affecting the AV node can lead to abnormal heart rhythms or heart block.
Key Facts
1.Part of the heart’s conduction system
2.Creates a brief delay in the heartbeat signal
3.Helps coordinate atrial and ventricular contraction
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Suggested video title for this topic:
"The tiny heart relay station that keeps every beat in sync."
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