The superior oblique muscle, or obliquus oculi superior, is a fusiform muscle in the upper, medial side of the orbit whose primary action is downward, lateral rotation of the eye. One of the extraocular muscles, the superior oblique is the only muscle innervated by the trochlear nerve (the fourth cranial nerve). [ http://en.wikipedia.org/wiki/Superior_oblique_muscle ]

Synonyms: dorsal oblique extraocular muscle superior oblique obliquus superior superior oblique muscle musculus obliquus superior

This is just here as a test because I lose it

Term information

Subsets

vertebrate_core

depicted by

http://upload.wikimedia.org/wikipedia/commons/e/e8/Eyemuscles.png

external definition

Cranial nerve IV innervated; dorsal in the obliquus group.[AAO]

has related synonym

obliquus oculi superior

M. obliquus superior

musculus obliquus superior bulbi

dorsal oblique extraocular muscles

homology notes

The ability to rotate the eyeball is common to all vertebrates with well-developed eyes, regardless of the habitat in which they live, so these [extrinsic ocular] muscles tend to be conservative. They change little during the course of evolution.[well established][VHOG]

id

UBERON:0006321