Tags: Anatomical Structure, Brain.
The mesencephalic nucleus is involved with proprioception of the face that is the feeling of position of the muscles. Unlike many nuclei within the central nervous system (CNS) the mesencephalic nucleus contains no chemical synapses but are electrically coupled. Instead neurons of this nucleus are pseudounipolar cells receiving proprioceptive information from the mandible and sending projections to the motor trigeminal nucleus to mediate monosynaptic jaw jerk reflexes.
