| 释义 |
atrioventricular bundle
atrioventricular bundlen. See bundle of His.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. Thesaurus| Noun | 1. |  atrioventricular bundle - a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contractatrioventricular trunk, bundle of His, truncus atrioventriculariscardiac muscle, heart muscle - the muscle tissue of the heart; adapted to continued rhythmic contraction |
atrioventricular bundle
atrioventricular bundle[¦ā·trē·ō‚ven′trik·yə·lər ′bən·dəl] (anatomy) bundle of His atrioventricular bundle
bundle [bun´d'l] a collection of fibers or strands, as of fibers" >muscle fibers or fibers" >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 fibers" >muscle fibers connecting the atria with the ventricles of the heart; called also atrioventricular bundle. Bundle of His considered as the trunk of the bundle and excluding the bundle branches. From Dorland's, 2000.medial forebrain bundle a group of fibers" >nerve fibers connecting the midbrain tegmentum and elements of the limbic system.Thorel's bundle a bundle of fibers" >muscle fibers in the human heart connecting the sinoatrial and atrioventricular nodes.a·tri·o·ven·tric·u·lar bun·dle [TA] 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. Synonym(s): fasciculus atrioventricularis [TA], atrioventricular band, Gaskell bridge, His band, His bundle, bundle of His, Keith bundle, Kent bundle (1) , Kent-His bundle, truncus fascicularis atrioventricularis, trunk of atrioventricular bundle, ventriculonectoratrioventricular bundlen. See bundle of His.bundle of His A bundle of specialised cardiac muscle fibres which carries the electric impulses for the co-ordinated contraction of the heart. The bundle begins at the AV node located at the inferior interatrial septum, and passes into the subendocardium through the right fibrous trigone to the interventricular septum, after which it divides into right and left limbs that pass along either side of the septum, branching to the walls of the ventricles.atrioventricular bundle Bundle of His, AV bundle Anatomy A group of specialized cardiac fibers that conduct impulses from the AV node to the ventriclebundle of His or atrioventricular bundle a group of specialized muscle fibres in the mammalian heart carrying electrical signals from the ATRIOVENTRICULAR NODE down the septum between the ventricles and eventually dividing up into Purkinje fibres. See HEART and Fig. 189 .Gaskell, Walter H., English physiologist, 1847-1914. Gaskell bridge - a bundle of modified cardiac muscle fibers. Synonym(s): atrioventricular bundleGaskell clamp - an instrument for crushing the atrioventricular bundle in experimental animals and thus producing heart block.
Keith, Sir Arthur, Scottish anatomist, 1866-1955. Keith bundle - modified cardiac muscle fibers. Synonym(s): atrioventricular bundleKeith and Flack node - the mass of specialized cardiac muscle fibers that normally acts as the pacemaker of the cardiac conduction system. Synonym(s): Flack node; Keith node; sinuatrial nodeKeith node - Synonym(s): Keith and Flack node
His, Wilhelm, Jr., German physician, 1863-1934. His band - Synonym(s): His bundleHis bundle - modified cardiac muscle fibers. Synonym(s): atrioventricular bundle; His band; Kent bundle; Kent-His bundleHis bundle electrogram - an electrogram recorded from the His bundle.His bundle heart blockHis bundle recordingHis spindle - a fusiform dilation of the aorta immediately beyond the isthmus. Synonym(s): aortic spindleHis-Tawara system - the complex system of interlacing Purkinje fibers within the ventricular myocardium.Kent-His bundle - Synonym(s): His bundle
His, Wilhelm, Sr., Swiss anatomist and embryologist in Germany, 1831-1904. duct of His - Synonym(s): Bochdalek ductHis copula - a median elevation in the floor of the embryonic pharynx that is incorporated in the root of the tongue. Synonym(s): hypobranchial eminenceHis line - a line dividing the face into an upper and a lower, or dental part.His perivascular space - Synonym(s): Virchow-Robin spaceHis rule - an obsolete calculation for the duration of pregnancy.isthmus of His - the anterior portion of the rhombencephalon connecting with the mesencephalon. Synonym(s): rhombencephalic isthmusFinancialSeebundleatrioventricular bundle
Related to atrioventricular bundle: Atrioventricular bundle of HisSynonyms for atrioventricular bundlenoun a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contractSynonyms- atrioventricular trunk
- bundle of His
- truncus atrioventricularis
Related Words- cardiac muscle
- heart muscle
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