human_reference_atlas Homo sapiens extra-ocular muscle medial rectus extraocular muscle http://upload.wikimedia.org/wikipedia/commons/e/e8/Eyemuscles.png FMA:49037 m. rectus medialis medial rectus extraocular muscle medial recti MA:0001281 medial rectus TAO:0000301 Taxon notes (from VHOG): "The ability to rotate the eyeball is common to all vertebrates with well-developed eyes, regardless of the habitat in which they live, so these [extrinsic ocular] muscles tend to be conservative. They change little during the course of evolution." Liem KF, Bemis WE, Walker WF, Grande L, Functional Anatomy of the Vertebrates: An Evolutionary Perspective, Third Edition (2001) Orlando Fla.: Harcourt College Publishers, p.331 [VHOG:0001127] The ability to rotate the eyeball is common to all vertebrates with well-developed eyes, regardless of the habitat in which they live, so these [extrinsic ocular] muscles tend to be conservative. They change little during the course of evolution.[well established][VHOG] UBERON:0004836 SCTID:181151001 AS UBERON:0001602 musculus rectus medialis bulbi medial rectus muscle medial rectus extraocular muscle medial rectus extraocular muscle UMLS:C0582820 AAO:0010113 NCIT:C33068 The medial rectus muscle is a muscle in the orbit. As with most of the muscles of the orbit, it is innervated by the inferior division of the oculomotor nerve (Cranial Nerve III). This muscle shares an origin with several other extrinsic eye muscles, the anulus tendineus, or common tendon. It is the largest of the extraocular muscles and its only action is adduction of the eyeball. [WP,unvetted]. Wikipedia:Medial_rectus_muscle VHOG:0001127 uberon ZFA:0000301 musculus rectus medialis rectus extraocular muscle