bundle of His
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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.
the bundle of modified cardiac muscle fibers that begins at the atrioventricular node as the trunk of the atrioventricular bundle and passes through the right atrioventricular fibrous ring to the membranous part of the interventricular septum where the trunk divides into two branches, the right bundle [TA] (crus dextrum [TA]) of the atrioventricular bundle and the left bundle [TA] (crus sinistrum [TA]) of the atrioventricular bundle; the two crura ramify in the subendocardium of their respective ventricles.
bundle of His(hĭs)
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.