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Junctional rhythm

Junctional rhythm is an abnormal heart rhyth, where the the HIS bundle initiates electrical activity in the heart. This causes the atria and ventricles to be electrically activated at the same time.

In contrast, in normal conditions, sinus rhythm initiates in the Sinus node and activates the atria then progresses into the HIS bundle, down the Purkinje fibers and up the ventrical. This causes the atria to contract before the ventricals.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Junctional_rhythm". A list of authors is available in Wikipedia.
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