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sinuatrial node

 

Definition: the mass of specialized cardiac muscle fibers that normally acts as the “pacemaker” of the cardiac conduction system; it lies under the epicardium at the upper end of the sulcus terminalis.

Synonym(s): nodus sinuatrialisTA, atrionector, Flack node, Keith and Flack node, Keith node, Koch node, sinoatrial node, sinus node

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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