lateral corticospinal tract


lateral corticospinal tract
lateral corticospinal tract n a band of nerve fibers that descends in the posterolateral part of each side of the spinal cord and consists mostly of fibers arising in the motor cortex of the contralateral side of the brain and crossing over in the decussation of pyramids with some fibers arising in the motor cortex of the same side called also crossed pyramidal tract

Medical dictionary. 2011.

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  • Lateral corticospinal tract — labeled in red at upper left. Latin tractus corticospinalis lateralis, fasciculus cerebrospinalis lateralis …   Wikipedia

  • corticospinal tract — n any of four columns of motor fibers of which two run on each side of the spinal cord and which are continuations of the pyramids of the medulla oblongata: PYRAMIDAL TRACT: a) LATERAL CORTICOSPINAL TRACT b) VENTRAL CORTICOSPINAL TRACT …   Medical dictionary

  • Corticospinal tract — Pyramidal tract redirects here. This page refers to the nerve fibres underlying the pyramids. For the actual area of the brain, Pyramids, see Pyramid of medulla oblongata. Brain: Corticospinal tract Deep dissection of brain stem. Lateral view. (… …   Wikipedia

  • corticospinal tract lateral — tractus corticospinalis lateralis …   Medical dictionary

  • Anterior corticospinal tract — seen in red at bottom center in figure (text tag found at upper left) …   Wikipedia

  • tract — An elongated area, e.g., path, track, way. SEE ALSO: fascicle. SYN: tractus. [L. tractus, a drawing out] alimentary t. SYN: digestive t.. anterior corticospinal t. uncrossed fibers forming a small bundle in the anterior funiculus of the …   Medical dictionary

  • Rubrospinal tract — Infobox Anatomy Name = PAGENAME Latin = tractus rubrospinalis GraySubject = 192 GrayPage = 870 Caption = Rubrospinal tract is 2a, in red at left. Caption2 = Schematic representation of the chief ganglionic categories (Rubrospinal tract not… …   Wikipedia

  • crossed pyramidal tract — n LATERAL CORTICOSPINAL TRACT …   Medical dictionary

  • Corticobulbar tract — Brain: Corticobulbar tract Components and location of the corticobulbar tract. Latin tractus corticonuclearis NeuroNames …   Wikipedia

  • Medial vestibulospinal tract — Brain: Medial vestibulospinal tract Vestibulospinal tract is 2c, in red at bottom center …   Wikipedia


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