bundle of His

bundle of His definition - medical

bundle of His (hĭs)

noun
The bundle of cardiac muscle fibers that begins at the atrioventricular node and passes through the right atrioventricular fibrous ring to the membranous part of the interventricular septum. It conducts the electrical impulse that regulates the heartbeat from the right atrium to the ventricles. Also called atrioventricular bundle, His bundle.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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