Lateral rectus muscle
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| Lateral rectus | ||
|---|---|---|
 | ||
| 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 | ||
 | ||
| Figure showing the mode of innervation of the Recti medialis and lateralis of the eye. | ||
| Latin | Rectus lateralus | |
| Gray's | subject #227 1022 | |
| Origin: | annulus of Zinn at the orbital apex | |
| Insertion: | 7 mm temporal to the limbus | |
| Artery: | ||
| Nerve: | abducens nerve | |
| Action: | abducts the eyeball (makes it move outwards) | |
- For the muscle of the neck, see Rectus capitis lateralis muscle
The lateral rectus muscle is a muscle in the orbit. It is one of six extraocular muscles that control the movements of the eye and the only muscle innervated by the abducens nerve, cranial nerve VI.
[edit] Additional images
 Nerves of the orbit. Seen from above. |
 Horizontal section of the eyeball. |
 Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure. |
[edit] External links
scalp/eyelid: occipitofrontalis (occipitalis, frontalis) - orbicularis oculi - corrugator supercilii - depressor supercilii
extraocular: levator palpebrae superioris - superior tarsal - rectus (superior, inferior, medial, lateral) - oblique (superior, inferior) - intraocular: ciliary - iris dilator - iris sphincter
ear: auriculares - temporoparietalis - stapedius - tensor tympani
nose: procerus - nasalis (dilatator naris) - depressor septi nasi - levator labii superioris alaeque nasi
mouth: levator anguli oris/depressor anguli oris - levator labii superioris/depressor labii inferioris - zygomaticus (major, minor) - mentalis - buccinator - orbicularis oris - risorius
mastication: masseter - temporalis - pterygoid (lateral, medial)
tongue: extrinsic (genioglossus - hyoglossus - chondroglossus - styloglossus) intrinsic (superior longitudinal - inferior longitudinal - transversus - verticalis)
soft palate: levator veli palatini - tensor veli palatini - musculus uvulae - palatoglossus - palatopharyngeus
pharynx: pharyngeal constrictor (inferior, middle, superior) - stylopharyngeus - salpingopharyngeus
larynx: cricothyroid - posterior cricoarytenoid - lateral cricoarytenoid - arytenoid - thyroarytenoid
| This page uses content from the English-language version of Wikipedia. The original article was at Lateral rectus muscle. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License. |
