释义 |
DictionarySeebundlemedial forebrain 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.me·di·al fore·brain bun·dle [TA] a fiber system coursing longitudinally through the lateral zone (area) of the hypothalamus, connecting the latter reciprocally with the midbrain tegmentum and with various components of the limbic system; it also carries fibers from cell groups containing norepinephrine and serotonin in the brainstem to the hypothalamus and cerebral cortex, as well as dopamine-carrying fibers from the substantia nigra to the caudate nucleus and putamen. Synonym(s): fasciculus medialis telencephali [TA]me·di·al fore·brain bun·dle (mē'dē-ăl fōr'brān bŭn'dĕl) [TA] A fiber system coursing longitudinally through the lateral zone of the hypothalamus, connecting the latter reciprocally with the midbrain tegmentum and with various components of the limbic system; it also carries fibers from norepinephrine-containing and serotonin-containing cell groups in the brainstem to the hypothalamus and cerebral cortex, as well as dopamine-carrying fibers from the substantia nigra to the caudate nucleus and putamen. AcronymsSeeMFB |