A 35-year-old member asked:
what is the purpose of the avn (atrioventricular node)?
1 doctor answer
Dr. James Chapman answered
40 years experience Cardiology
Brakes: This is specialized conduction tissue between the atria (upper chambers) and ventricles. The normal heart beat arises from the atria an passes through this node to the ventricles to stimulate contraction. If something goes awry in the atria causing a very rapid heart rate, the AV node will prevent some of these impulse from getting through, limiting how fast your heart will beat in response.
Answered on Nov 29, 2014
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