either one of the third pair of cranial nerves, consisting chiefly of motor fibers that innervate most of the muscles of the eyeball.
the third cranial nerve, which supplies most of the eye muscles
oculomotor nerve n.
A nerve originating in the midbrain below the cerebral aqueduct, supplying all the extrinsic muscles of the eye except the lateral rectus and the superior oblique muscles, and supplying the elevator muscle of the upper eyelid, the ciliary muscle, and the sphincter muscle of the pupil. Also called third cranial nerve.
- Oculomotor nucleus
oculomotor nucleus n. The group of motor neurons that innervate the external eye muscles except the lateral rectus and the superior oblique muscles and lie in the midbrain near the midline in the most ventral part of the central gray substance.
oculonasal oc·u·lo·na·sal (ŏk’yə-lō-nā’zəl) adj. Of or relating to the eyes and nose.
oculoplethysmography oc·u·lo·pleth·ys·mog·ra·phy (ŏk’yə-lō-plěth’ĭz-mŏg’rə-fē) n. Indirect measurement of the hemodynamic significance of internal carotid artery stenosis or occlusion.
oculopneumoplethysmography oc·u·lo·pneu·mo·pleth·ys·mog·ra·phy (ŏk’yə-lō-nōō’mō-plěth’ĭz-mŏg’rə-fē, -nyōō’-) n. A method of bilateral measurement of ophthalmic artery pressure that reflects pressure and flow in the internal carotid artery.