mandibular nerve

(redirected from Mandibular division of the trigeminal nerve)
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mandibular nerve

Abbreviation: CN V3
1. The inferior trunk of the trigeminal cranial nerve. The mandibular nerve is both sensory and motor.


The major sensory branches are the auriculotemporal, lingual, and inferior alveolar nerves, which innervate the lower teeth and gingivae and the skin of the lower lip, chin, and jaw up into the "sideburn area" in front of the ear.


The major motor branches are the lateral pterygoid, masseteric, deep temporal, and buccal nerves, which innervate the muscles of mastication (lateral and medial pterygoids, masseter, and temporalis).


The mandibular nerve leaves the skull via the foramen ovale.

2. A motor branch of the facial nerve (CN VII) that innervates the facial muscles of the lower lip and chin.
See also: nerve
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Lingual Nerve: The lingual nerve is primarily a branch of the mandibular division of the trigeminal nerve. Level I neck dissection incorporating submandibular gland excision puts this nerve at risk for injury.
Following the 5th visit, MG's neurological exam began to change in that he demonstrated symmetrical sensation with pinwheel testing in the (V3) mandibular division of the trigeminal nerve. The return of sensation to the lower third of the face was also accompanied by an increased ability to develop trace activity in the upper left lip corner with active smiling.
According to Kuder (1983), the otic ganglia of the rat is located below the sphenoid bone, next to where the mandibular division of the trigeminal nerve makes the foramen oval, being more closely related to the maxillary artery than to the mandibular nerve.