trigeminal nerve

noun

either one of the fifth pair of cranial nerves, which supply the muscles of the mandible and maxilla. Their ophthalmic branches supply the area around the orbit of the eye, the nasal cavity, and the forehead

trigeminal nerve

/ trī-jĕm′ə-nəl /

Either of the fifth pair of cranial nerves, having sensory and motor functions in the face, teeth, mouth, and nasal cavity.

Anteriorly it is pierced by a pair of small foramina through which the ophthalmic branches of the trigeminal nerve pass out.

These perforate the palatine and transmit branches of the trigeminal nerve and certain blood-vessels.

All the muscles belonging to this oral chamber are of the visceral type, and are innervated by the trigeminal nerve.

The metastoma, which has become in Ammocœtes the lower lip supplied by the velar or mandibular branch of the trigeminal nerve ; 2.

In Fig. 114, Miss Alcock has drawn the distribution of the trigeminal nerve as traced by her through a series of sections.

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