The 5th and largest cranial nerve. The trigeminal nerve is a mixed motor and sensory nerve. The larger sensory part forms the ophthalmic, mandibular, and maxillary nerves which carry afferents sensitive to external or internal stimuli from the skin, muscles, and joints of the face and mouth and from the teeth. Most of these fibers originate from cells of the trigeminal ganglion and project to the trigeminal nucleus of the brain stem. The smaller motor part arises from the brain stem trigeminal motor nucleus and innervates the muscles of mastication.

Descriptor ID	D014276
MeSH Number(s)	A08.800.800.120.760
Concept/Terms	Trigeminal Nerve Trigeminal Nerve Nerve, Trigeminal Nerves, Trigeminal Trigeminal Nerves Cranial Nerve V Nerve V, Cranial V, Cranial Nerve Fifth Cranial Nerve Cranial Nerve, Fifth Cranial Nerves, Fifth Fifth Cranial Nerves Nerve, Fifth Cranial Nerves, Fifth Cranial

Below are MeSH descriptors whose meaning is more general than "Trigeminal Nerve".

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Below are MeSH descriptors whose meaning is more specific than "Trigeminal Nerve".