Supraorbital nerve

The supraorbital nerve is one of the two branches of the frontal nerve that follows the trajectory of the levator palpebrae superioris muscle to reach the supraorbital margin. In ruminants, pigs and carnivores, it exits the orbit around its edge, but in humans and rabbits, it passes through the supraorbital notch. In horses, the nerve passes through the supraorbital canal. Once in the frontal region, this nerve innervates the skin of the forehead and the medial part of the upper eyelid, and divides into various terminal branches.