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a collection of fibers or strands, as of muscle fibers or nerve fibers. See also tract and fasciculus.
atrioventricular bundle bundle of His.
fundamental bundle (ground bundle) that part of the white matter of the spinal cord bordering the gray matter and containing fibers that travel for a distance of only a few segments of the cord.
bundle of His a band of cardiac muscle fibers connecting the atria with the ventricles of the heart; called also atrioventricular bundle.
medial forebrain bundle a group of nerve fibers connecting the midbrain tegmentum and elements of the limbic system.
Thorel's bundle a bundle of muscle fibers in the human heart connecting the sinoatrial and atrioventricular nodes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A bundle of nerve fibers that immediately surrounds the gray matter of the spinal cord. It is divided into three regions, the anterior, lateral, and posterior bundles, which lie in the corresponding funiculi. These consist principally of short descending fibers.
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