motor nerves of the eye

oculomotor muscle brain anatomy extraocular eyelid lens eye eyeball ocular vision view retina pupil disc cornea iris branch ciliary ganglion parasympathetic cortex cerebellum cerebrum cerebral motor nerve nervous brainstem human head neurology organ sensory system vector midbrain pons visceral somatic fibres superior rectus palpebrae oblique inferior levator medial pupillae sphincter