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TRIGEMINAL PATHWAYS

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key - 2 - 1 - caudal - SLIDE 14 - rostral - 1 - 2 - key

The fibers of the trigeminal nerve can be seen passing medially, through the middle cerebellar peduncle, but this slide lies just rostral to the chief sensory nucleus of the nerve. The ventral secondary trigeminal tract is now completely formed, and ascends to the thalamus on the contralateral side of the brainstem. Fibers can be seen passing to and from the mesencephalic nucleus in the mesencephalic tract. The nucleus, itself, consists of a small scattering of cells surrounding the tract.