lateral corticospinal tract

(redirected from Crossed pyramidal tract)
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lat·er·al cor·ti·co·spi·nal tract

[TA]
those fibers that cross to the opposite side in the corticospinal (pyramidal) decussation and descend in the posterior half of the lateral funiculus of the spinal cord; they are distributed throughout the length of the spinal cord to interneurons of the zona intermedia of the spinal gray matter, to some of the nuclei of the posterior horn, and to interneuron pools of the anterior horn.
See also: corticospinal tract.

lateral corticospinal tract

a group of nerve fibers in the lateral funiculus of the spinal cord, originating in the cerebral cortex, that control voluntary movement of the body.

lat·er·al cor·ti·co·spi·nal tract

(LCST) (lat'ĕr-ăl kōr'ti-kō-spī'năl trakt) [TA]
Contralateral descending motor tract. Upper motor neurons influence the lower set either directly or indirectly.