The<unk> , also known as the third cranial nerve, cranial nerve III, or simply CN III, is a cranial nerve that enters the orbit through the superior orbital fissure and innervates extraocular muscles that enable most movements of the eye and that raise the eyelid. The nerve also contains fibers that innervate the intrinsic eye muscles that enable pupillary constriction and accommodation (ability to focus on near objects as in reading). The<unk>  is derived from the basal plate of the embryonic midbrain. Cranial nerves IV and VI also participate in control of eye movement.
Oculomotor nerve
Supratrochlear nerve
Olfactory nerve
Buccal branches of the facial nerve
Auriculotemporal nerve
Olfactory trigone
Nerve of pterygoid canal
Optician