Inferior rectus | |
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Details | |
Origin | Common tendinous ring at the orbital apex |
Insertion | 6.8 mm inferior to the corneal limbus |
Artery | Inferior muscular branch of the ophthalmic artery, infraorbital artery |
Vein | Inferior muscular branch of the ophthalmic vein |
Nerve | Inferior branch of oculomotor nerve |
Actions | Depression, adduction, extorsion |
Identifiers | |
Latin | musculus rectus inferior bulbi |
TA98 | A15.2.07.011 |
TA2 | 2043 |
FMA | 49036 |
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).