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Electrical system of the heart

Electrical system of the heart

Picture of the heart's electrical system

The heart's electrical signal travels through pathways (yellow). This stimulates your upper chambers (atria) and lower chambers (ventricles) to contract.

Last Updated: December 18, 2008
Medical Review: Caroline S. Rhoads, MD - Internal Medicine
John M. Miller, MD - Electrophysiology
This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information.


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