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The cranial nerve nuclei derived from the alar plate in the medulla and their corresponding functional components include the vestibular and cochlear nuclei (somatic afferent [SA]), the solitary nucleus (visceral afferent [VA]), and the spinal trigeminal nucleus (SA) ( Fig. 11.2 ). Alar plate neuro…

The cranial nerve nuclei derived from the alar plate in the medulla and their corresponding functional components include the vestibular and cochlear nuclei (somatic afferent [SA]), the solitary nucleus (visceral afferent [VA]), and the spinal trigeminal nucleus (SA) ( Fig. 11.2 ). Alar plate neuroblasts caudal to the obex give rise to the gracile and cuneate nuclei. Rostral to the obex, some alar plate cells migrate ventromedially to form the nuclei of the inferior olivary complex.