Contains second order neurons for touch and proprioception in the face and head and thus is the equivalent of the nuclei cuneatus and gracilis but for the face/head. Located in mid-pontine tegmentum, lateral to the Motor Nucleus of V. Axons from this nucleus cross (mostly) and ascend to thalamus (VPM). Also called Trigeminal Principal Sensory Nucleus Principal Sensory Nucleus of V, Chief Sensory Nucleus of V, Pontine Trigeminal Nucleus etc. etc.
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