Motor nucleus of the trigeminal nerve
Last revised by Frank Gaillard on 14 Mar 2022
Citation, DOI, disclosures and article data
Citation:
Rothe C, Gaillard F, Hacking C, Motor nucleus of the trigeminal nerve. Reference article, Radiopaedia.org (Accessed on 14 Oct 2024) https://doi.org/10.53347/rID-76837
rID:
76837
Article created:
29 Apr 2020,
Chris Rothe
Disclosures:
At the time the article was created Chris Rothe had no recorded disclosures.
View Chris Rothe's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Revisions:
6 times, by
3 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Motor nucleus
The motor nucleus of the trigeminal nerve is the only motor nucleus of the four main trigeminal nerve nuclei.
Gross anatomy
The motor nucleus is a paired structure located within the mid-to-upper pons (tegmentum). It lies anteromedial to the main sensory nucleus and adjacent to the lateral aspect of the floor of the fourth ventricle.
Innervation
The motor nucleus of the trigeminal nerve houses the cell bodies that innervate all of the muscles derived from the first pharyngeal arch. These include the muscles of mastication (lateral pterygoid, medial pterygoid, masseter and temporalis muscles) in addition to tensor tympani, tensor veli palatini, mylohyoid and the anterior belly of the digastric muscles 1.
References
- 1. Shmuel Price, Daniel T. Daly. Neuroanatomy, Nucleus Trigeminal. (2019) Pubmed
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