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). [ ]

Synonyms: nervus trigeminus [v] trigeminal v nerve trigeminal nerve tree nervus trigeminus trigeminal nerve [V] fifth cranial nerve trigeminal V

This is just here as a test because I lose it

Term information

database cross reference

uberon_slim, efo_slim, pheno_slim, vertebrate_core

5n [ BIRNLEX:869 NIFSTD:NeuroNames_abbrevSource ]

latin term
nervus trigeminus [v] [ FMA:TA FMA:50866 ]

depicted by


external definition

Nerve consists of motor and sensory components. Ganglion cells of the sensory component form the proximal part of the trigeminal (Gasserian) ganglion. From the ganglion 3 major rami innervate jaws, snout, and buccal roof.[AAO]

has related synonym

nerve V

nervus trigeminus

cranial nerve V



homology notes

We conclude this section by listing some of the many synapomorphies of craniates, including (...) (5) cranial nerves (...) (reference 1); Phylogenetically, the cranial nerves are thought to have evolved from dorsal and ventral nerves of a few anterior spinal nerves that became incorporated into the braincase. Dorsal and ventral nerves fuse in the trunk but not in the head, and they produce two series: dorsal cranial nerves (V, VII, IX, and X) and ventral cranial nerves (III, IV, VI, and XIII) (reference 2).[well established][VHOG]



taxon notes

the ophthalmic usually usually merges with the other two. In some vertebrates, the ophthalmic emerges from the brain separately[Kardong] The trigeminal nerve has 3 branches in mammals - similar branches are present in nonmammalian vertebrates, but in some a separate profundus nerve that corresponds to opthalmic branch in mammls