The<unk>  is a branch of the frontal nerve, itself a branch of the ophthalmic nerve (CN V1) from the trigeminal nerve (CN V). It is smaller than the supraorbital nerve from the frontal nerve. It branches midway between the base and apex of the orbit. It passes above the trochlea of the superior oblique muscle. It then travels anteriorly above the levator palpebrae superioris muscle. It exits the orbit through the frontal notch in the superomedial margin of the orbit. It then ascends onto the forehead beneath the corrugator supercilii muscle and frontalis muscle. It then divides into sensory branches. The<unk>  travels with the<unk>  artery, a branch of the ophthalmic artery.
Supratrochlear nerve
Auriculotemporal nerve
Oculomotor nerve
Nerve of pterygoid canal
Buccal branches of the facial nerve
Marginal mandibular branch of the facial nerve
Olfactory nerve
Iris dilator muscle