The oculomotor nerve is the 3rd of 12 cranial nerves. It enters the orbit via the superior orbital fissure and controls most of the eye movement, including constriction of the pupil and maintaining an open eyelid by innervating the levator palpebrae superioris muscle. The superior branch of the oculomotor nerve or the superior division, supplies the superior rectus and levator palpebrae superioris. The inferior branch of the oculomotor nerve or the inferior division controls the medial rectus, inferior rectus, inferior oblique and connects to the ciliary ganglion. Scientifically accurate. Great for school, doctor offices, clinic, hospital,... for educational purposes. Vector file scaleable to any size without losing resolution. Check out my store for more medical illustrations, both serious and fun stuffs. All images are made by myself, a scientist. If you cant find what you need here, just drop me a comment.