The principal sensory nucleus of trigeminal nerve (or chief sensory nucleus of V, main trigeminal sensory nucleus) is a group of second-order neurons which have cell bodies in the caudal pons.
| Principal sensory nucleus of trigeminal nerve | |
|---|---|
 The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Trigeminal nerve nuclei are at "V".) | |
| Details | |
| Identifiers | |
| Latin | nucleus principalis nervi trigemini |
| NeuroNames | 560 |
| TA98 | A14.1.05.406 |
| TA2 | 5932 |
| FMA | 54533 |
| Anatomical terms of neuroanatomy | |
It receives information about discriminative sensation and light touch of the face as well as conscious proprioception of the jaw via first order neurons of CN V.
- Most of the sensory information crosses the midline and travels to the contralateral ventral posteromedial nucleus (VPM) of the thalamus via the anterior trigeminothalamic tract.
- However, information of the oral cavity travels to the ipsilateral VPM of the thalamus via the dorsal trigeminothalamic tract.
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