bundle of His
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bundle of His
(hĭs)n.
The bundle of cardiac muscle fibers that conducts the electrical impulses that regulate the heartbeat, from the atrioventricular node in the right atrium to the septum between the ventricles and then to the left and right ventricles. Also called atrioventricular bundle.
[After Wilhelm His, Jr. (1863-1934), Swiss physician.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a′trioventric′ular bun`dle
n.
a bundle of conducting muscle fibers in the heart leading from the atrioventricular node to the ventricles. Also called bundle of His.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| Noun | 1. |  bundle of His - a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contractcardiac muscle, heart muscle - the muscle tissue of the heart; adapted to continued rhythmic contraction |
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