Inferior oblique 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.
| 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 | |
| Origin | orbital surface of the maxilla, lateral to the lacrimal groove |
| Insertion | laterally onto the eyeball, deep to the lateral rectus, by a short flat tendon |
| Artery | ophthalmic artery |
| Nerve | oculomotor nerve |
| Actions | extorsion, elevation, abduction |
| Identifiers | |
| Latin | musculus obliquus inferior bulbi |
| TA98 | A15.2.07.019 |
| TA2 | 2051 |
| FMA | 49040 |
| Anatomical terms of muscle | |
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