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Superior oblique

Other Terms: Obliquus superior, Musculus obliquus superior bulbi, Musculus obliquus superior, Muscle trochléaire

Muscle parts

None

Latin name

Musculus obliquus superior

Latin muscle parts

None

Group

Head somite muscle – pre-otic group (Extra-ocular muscle)

Etymology

The English name for this muscle is the lower slanting muscle (of the eye). The Latin term obliquus means slanting or sideways and describes its orientation. The Latin word superior comes from super meaning “over or above.”

Origin

Sphenoid bone superior and medial to the optic canal

Insertion

Passes through a trochlear loop to the superolateral surface of the sclera in the posterior half

Action

Depresses, abducts, and intorts the eye.

Nerve supply

Trochlear nerve (Cranial nerve IV)

Blood supply

Muscular branches of the ophthalmic artery via the internal carotid artery.

Latin

Musculus obliquus superior bulbi

Latin

Musculus obliquus superior

French

Muscle trochléaire

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