Inferior oblique muscle

Inferior oblique
Rectus muscles:
2 = superior, 3 = inferior, 4 = medial, 5 = lateral
Oblique muscles: 6 = superior, 8 = inferior
Other muscle: 9 = levator palpebrae superioris
Other structures: 1 = Annulus of Zinn, 7 = Trochlea, 10 = Superior tarsus, 11 = Sclera, 12 = Optic nerve
Sagittal section of right orbital cavity.
Details
OriginOrbital surface of the maxilla, lateral to the lacrimal groove
InsertionLaterally onto the eyeball, deep to the lateral rectus, by a short flat tendon
ArteryOphthalmic artery
NerveOculomotor nerve
ActionsExtorsion, elevation, abduction
Identifiers
Latinmusculus obliquus inferior bulbi
TA98A15.2.07.019
TA22051
FMA49040
Anatomical terms of muscle

The inferior oblique muscle or obliquus oculi inferior is a thin, narrow muscle placed near the anterior margin of the floor of the orbit. The inferior oblique is one of the extraocular muscles, and is attached to the maxillary bone (origin) and the posterior, inferior, lateral surface of the eye (insertion). The inferior oblique is innervated by the inferior branch of the oculomotor nerve.