spinal tract of the trigeminal nerve


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Related to spinal tract of the trigeminal nerve: mesencephalic tract of trigeminal nerve, motor nucleus of trigeminal nerve

spinal tract of the trigeminal nerve

A tract of somatic sensory axons from the trigeminal nerve that runs caudally from the midpontine level of the brainstem along the spinal nucleus of the trigeminal nerve. The tract carries pain and temperature information from the face, and its axons synapse topographically in the adjacent nucleus. In the transition zone between hindbrain and spinal cord, the spinal tract of the trigeminal nerve disappears into the tract of Lissauer although a few axons of the spinal tract extend as far caudally as spinal cord segment C3-C4.
Synonym: trigeminal spinal tract
See also: tract