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superior oblique extraocular muscle

Go to external page http://purl.obolibrary.org/obo/UBERON_0006321

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 ]

Term info

Label

superior oblique extraocular muscle

Synonyms
  • dorsal oblique extraocular muscle
  • musculus obliquus superior
  • obliquus superior
  • superior oblique
  • superior oblique muscle
database cross reference
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