Motor nucleus of the trigeminal nerve
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At the time the article was created Chris Rothe had no recorded disclosures.View Chris Rothe's current disclosures
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The motor nucleus of the trigeminal nerve is the only motor nucleus of the four main trigeminal nerve nuclei.
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.
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.