Location and Function - Located in the caudal pons - Group of second-order neurons - Receives information about discriminative sensation and light touch of the face - Receives conscious proprioception of the jaw - Plays a role in sensory processing of the trigeminal nerve

Sensory Information - Most sensory information crosses the midline - Travels to the contralateral ventral posteromedial nucleus (VPM) of the thalamus - First-order neurons of CN V transmit the information - Involved in transmitting information about discriminative sensation and light touch of the face - Involved in transmitting information about conscious proprioception of the jaw

Oral Cavity Information - Information about the oral cavity travels to the ipsilateral VPM of the thalamus - Transmitted via the dorsal trigeminothalamic tract - Different pathway compared to other sensory information - Important for processing sensory information related to the oral cavity - Contributes to the overall sensory perception of the face

Anatomical Identifiers - Latin term: nucleus principalis nervi trigemini - NeuroNames identifier: 560 - TA98 identifier: A14.1.05.406 - TA2 identifier: 5932 - FMA identifier: 54533

Role in Neuroanatomy - Part of the cranial nerve nuclei - Schematically represented in the dorsal view - Motor nuclei are represented in red, while sensory nuclei are represented in blue - Plays a crucial role in sensory processing within the trigeminal nerve - Contributes to the overall function and perception of the face and oral cavity