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Related to James fibers: Mahaim fibers
atrio-His bundle connections thought to be the basis for the short P-R interval syndrome; these fibers should be distinguished from the controversial internodal tracts of the atrium.
Synonym(s): James tracts
[Thomas N. James, U.S. cardiologist and physiologist, b. 1925]
A pathway for conduction of cardiac impulses so that they bypass the atrioventricular node. This alternate fiber pathway permits pre-excitation of the ventricle with resultant tachycardia.
James,Thomas N., U.S. cardiologist and physiologist, 1925–.
James fibers - atrio-His bundle connections thought to be the basis for the short P-R interval syndrome. Synonym(s): James tracts
James tracts - Synonym(s): James fibers
conduction fibers that originate in the atrial internodal tracts and pass to the ventriculum but bypass the AV node. Called also James accessory conduction.