Spinothalamic tract



spinothalamic tract spi·no·tha·lam·ic tract (spī’nō-thə-lām’ĭk)
n.
A large ascending bundle of fibers in the ventral half of the lateral funiculus of the spinal cord, arising in the posterior horn at all levels of the cord and continuing into the brainstem. It is composed in the spinal cord of a lateral part that conveys impulses associated with pain and temperature sensation and of an anterior part that is involved in tactile sensation.

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