trigeminal nerve

Cranial nerve that has three branches - the ophthalmic (supplying the skin of the nose and upper jaw), the maxillary and the mandibular (supplying the lower jaw). Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the trigeminal nerve is

Cranial nerve that has three branches - the ophthalmic (supplying the skin of the nose and upper jaw), the maxillary and the mandibular (supplying the lower jaw). The atlas records it as a nerve at the organ scale in the human body.

Where the trigeminal nerve is

It sits in the head, within the nervous system. Positioned deliberately as part of this species body plan.

What the trigeminal nerve connects to

The atlas records 10 typed relationships for it, across 4 kinds of connection. a kind of cranial nerve.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the trigeminal nerve. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as 5n, fifth cranial nerve, nervus trigeminus, nervus trigeminus [v], trigeminal V and trigeminal nerve [V], and 6 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001645, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: cranial nerve.
• Innervates: mouth and skin of face.
• contains: mandibular nerve, maxillary nerve, ophthalmic nerve and trigeminal nerve fibers.
• branching part of: mandibular nerve, maxillary nerve and ophthalmic nerve.

Questions

Where is the trigeminal nerve?

It sits in the head, within the nervous system. Positioned deliberately as part of this species body plan.

What does the trigeminal nerve connect to?

A kind of: cranial nerve.

Is the trigeminal nerve the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.