part of part of innervates innervates branching part of branching part of nerve medial rectus extraocular muscle oculomotor nerve inferior rectus extraocular muscle nerve of head region inferior branch of oculomotor nerve The inferior branch of the oculomotor nerve or the inferior division, the larger, divides into three branches. One passes beneath the optic nerve to the medial rectus. Another, to the inferior rectus. The third and longest runs forward between the inferior recti and lateralis to the inferior oblique. From the last a short thick branch is given off to the lower part of the ciliary ganglion, and forms its short root. All these branches enter the muscles on their ocular surfaces, with the exception of the nerve to the inferior oblique, which enters the muscle at its posterior border. oculomotor nerve inferior division inferior ramus of oculomotor nerve ventral ramus of oculomotor nerve ventral ramus of occulomotor nerve neuronames:2232 SCTID:280206003 UBERON:0015161 ramus inferior (nervus oculomotorius [III]) AAO:0010632 FMA:52573 Wikipedia:Inferior_branch_of_oculomotor_nerve inferior division of oculomotor nerve