The parts of the trigeminal nucleus receive different types of sensory information; the spinal trigeminal nucleus receives pain-temperature fibers, the principal sensory nucleus receives touch-position fibers and the mesencephalic nucleus receives proprioceptor and mechanoreceptor fibers from the jaws and teeth.
2.
The gracile nucleus and fasciculus, which carries the same type of information, but from the upper body ( above T6, excepting the face and ear-the information from the face and ear is carried by the principal sensory nucleus of trigeminal nerve ).
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