oculomotor nerve poster

oculomotor brain anatomy cranial nerve brainstem human vector diagram nervous system illustration neurology head organ cortex hypothalamus sensory motor olfactory cerebellum cerebral cerebrum section optic trigeminal facial vestibulocochlear glossopharyngeal vagus accessory hypoglossal muscle extraocular eyelid eye eyeball ocular vision retina pupil disc cornea iris branch ciliary ganglion lens parasympathetic fibres