Inferior rectus muscle

Inferior rectus
The inferior rectus muscle, is shown in this superior view of the eye, along with its axis of rotation. The other muscle is the superior oblique muscle, which angles around the trochlea.
Details
OriginCommon tendinous ring at the orbital apex
Insertion6.8 mm inferior to the corneal limbus
ArteryInferior muscular branch of the ophthalmic artery, infraorbital artery
VeinInferior muscular branch of the ophthalmic vein
NerveInferior branch of oculomotor nerve
ActionsDepression, adduction, extorsion
Identifiers
Latinmusculus rectus inferior bulbi
TA98A15.2.07.011
TA22043
FMA49036
Anatomical terms of muscle

The inferior rectus muscle is a muscle in the orbit near the eye. It is one of the four recti muscles in the group of extraocular muscles. It originates from the common tendinous ring, and inserts into the anteroinferior surface of the eye. It depresses the eye (downwards).


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