This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim, vertebrate_core

latin term
nervus trochlearis [IV] [ FMA:TA FMA:50865 ]

abbreviation
4n [ BIRNLEX:1654 NIFSTD:NeuroNames_abbrevSource ]

definition

A cranial nerve that runs to the eye muscles.

depicted by

Trochlear:nerve.png

development notes

The human trochlear nerve is derived from the basal plate of the embryonic midbrain.

external definition

Somatic efferent nerve which supplies a single eye muscle, the m. obliquus superior.[AAO]

has exact synonym

fourth cranial nerve

cranial nerve IV

superior oblique nerve

trochlear IV nerve

trochlear nerve [IV]

trochlear nerve tree

nervus trochlearis [IV]

has related synonym

pathetic nerve

trochlear

trochlear nerve or its root

CN-IV

nervus trochlearis

trochlear nerve/root

nerve IV

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]

id

UBERON:0001644

taxon notes

Homologous trochlear nerves are found in all jawed vertebrates