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Mesencephalic nucleus of trigeminal nerve



Brain: Mesencephalic 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".)
Latin nucleus mesencephalicus nervi trigemini
Gray's subject #187 787
NeuroNames hier-550
MeSH Trigeminal+nuclei
Dorlands/Elsevier n_11/12581865

The mesencephalic nucleus is involved with proprioception, that is, the feeling of position of the muscles. Unlike many nuclei within the CNS, the mesencephalic nucleus contains no chemical synapses but are electrically coupled (Baker and Llinas1971). Instead, neurons of this nucleus are pseudounipolar cells receiving proprioceptive information from the jaw, and sending projections to the motor trigeminal nucleus to mediate monosynaptic jaw reflexes.

Baker, R.G. and Llinas, R. Electrotonic coupling between neurones in the rat mesencephalic nucleus. J. Physiology 212: 45-63, 1971.

v • d • e
Brain: mesencephalon (midbrain)
TectumCorpora quadrigemina (Inferior colliculi, Superior colliculi) • Subcommissural organ • Pretectum
Peduncle tegmentumPeriaqueductal gray (Cerebral aqueduct, Dorsal raphe nucleus) • Ventral tegmentum • Pedunculopontine nucleus • Red nucleus • MLF (riMLF)  • lemnisci (Medial, Lateral) • cranial nuclei (III: Oculomotor nucleus, III: Edinger-Westphal nucleus, IV: Trochlear nucleus, V: Mesencephalic)
Peduncle baseSubstantia nigra • Cerebral crus (Corticospinal tract, Corticobulbar tract, Corticopontine tract/Frontopontine fibers/Temporopontine fibers)
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Mesencephalic_nucleus_of_trigeminal_nerve". A list of authors is available in Wikipedia.
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