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subendocardial branches of atrioventricular bundles


Definition: interlacing fibers formed of modified cardiac muscle cells with central granulated protoplasm containing one or two nuclei and a transversely striated peripheral portion; they are the terminal ramifications of the conducting system of the heart found beneath the endocardium of the ventricles.

Synonym(s): rami subendocardiales fasciculi atrioventricularisTA, Purkinje fibers

See Also: conducting system of heart

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.