Teaseâ¢ Pasties. Sexy Fun Freedom. Waterproof Latex free Glow Glitter Durable, stretchy and everything in between. #Pastease pastease.com.
III Oculomotor nerve. Fibers run from the mid-brain to the eye. Supplies motor fibers to four of the six muscles that direct the eyeball, to the eyelid, and to the internal eye muscles controlling lens shape and pupil size.
The size of the pupil is controlled by the iris. The iris has a circular muscle layer that constricts the pupil and a radial muscle layer that dilates the pupil. Parasympathetic neurons control the circular muscle layer while sympathetic neurons control the radial muscle layer.