Superior rectus muscle

Muscle infobox
Name = Superior rectus
Latin = musculus rectus superior bulbi
GraySubject = 227
GrayPage = 1022



Caption = "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


| Caption2 = Sagittal section of right orbital cavity.
Origin = annulus of Zinn at the orbital apex
Insertion = 7.5 mm superior to the limbus
Blood =
Nerve = oculomotor nerve
Action = elevates, adducts, and rotates medially the eye
DorlandsPre = m_22
DorlandsSuf = 12550523
The superior rectus muscle is a muscle in the orbit. It is one of the extraocular muscles.

It is innervated by the superior division of the oculomotor nerve (Cranial Nerve III).

In the primary position (looking straight ahead), the superior rectus muscle's primary function is elevation, although it also contributes to intorsion and adduction.


=Additional

External links

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* [http://cim.ucdavis.edu/Eyes/eyeText.htm Diagram]


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Look at other dictionaries:

  • superior rectus muscle — noun the ocular muscle whose contraction turns the eyeball upward and medially • Syn: ↑superior rectus, ↑rectus superior • Hypernyms: ↑ocular muscle, ↑eye muscle …   Useful english dictionary

  • Superior oblique muscle — Superior oblique Rectus muscles: 2 = superior, 3 = inferior, 4 = medial, 5 = lateral Oblique muscles: 6 = superior, 8 = inferior Other muscle: 9 = levator palpebrae superioris …   Wikipedia

  • Superior tarsal muscle — The tarsi and their ligaments. Right eye; front view. (Muscle not labeled but region is visible.) …   Wikipedia

  • superior rectus — noun the ocular muscle whose contraction turns the eyeball upward and medially • Syn: ↑superior rectus muscle, ↑rectus superior • Hypernyms: ↑ocular muscle, ↑eye muscle …   Useful english dictionary

  • superior rectus — noun A muscle in the orbit of the eye. Syn: superior rectus muscle See Also: inferior rectus, medial rectus, lateral rectus …   Wiktionary

  • rectus muscle of eyeball superior — musculus rectus superior bulbi …   Medical dictionary

  • Medial rectus muscle — Medial rectus Rectus muscles: 2 = superior, 3 = inferior, 4 = medial, 5 = lateral Oblique muscles: 6 = superior, 8 = inferior Other muscle: 9 = levator palpebrae superioris O …   Wikipedia

  • Lateral rectus muscle — Muscle infobox Name = Lateral rectus Latin = musculus rectus lateralis bulbi GraySubject = 227 GrayPage = 1022 Caption = Rectus muscles: 2 = superior, 3 = inferior, 4 = medial, 5 = lateral Oblique muscles: 6 = superior, 8 = inferior Other muscle …   Wikipedia

  • Inferior rectus muscle — Muscle infobox Name = Inferior rectus Latin = musculus rectus inferior bulbi GraySubject = 227 GrayPage = 1022 Caption = Rectus muscles: 2 = superior, 3 = inferior, 4 = medial, 5 = lateral Oblique muscles: 6 = superior, 8 = inferior Other muscle …   Wikipedia

  • rectus superior — noun the ocular muscle whose contraction turns the eyeball upward and medially • Syn: ↑superior rectus muscle, ↑superior rectus • Hypernyms: ↑ocular muscle, ↑eye muscle …   Useful english dictionary


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