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What type of peripheral nerve fiber is involved with transmission of spinothalamic information?
Small, myelinated, and unmyelinated fibers carry spinothalamic-type information.
What is the pathway by which this information reaches the cerebral cortex?
Sensation on skin → afferent sensory nerve → substantia gelatinosa of the ipsilateral dorsal horn → synapse → cross via the anterior white commissure → contralateral spinothalamic tract → ascend to the VPL nucleus of the thalamus → synapse → through the posterior limb of the internal capsule → postcentral gyrus of the cortex.
