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bundle of His (atrioventricular {AV} bundle)
Function:
- ooriginates at the AV node & enters the interventricular septum where it divides into a right bundle branch & left bundle branch which propagate conduction (via Purkinje system) to the right & left ventricles, respectively.
Pathology:
- heart block involving the His bundle is associated with bilateral bundle branch block
Related
purkinje fibers (subendocardial branches of atrioventricular bundle)
General
heart structure
References
- Taber's Cyclopedic Medical Dictionary, FA Davis, Philadelphia,
1977
- Harrison's Principles of Internal Medicine, 13th ed.
Isselbacher et al (eds), McGraw-Hill Inc. NY, 1994, pg 1017
Component-of
cardiac conduction system
Images
image related to His bundle