supraorbital nerve supraorbital nerve the supraorbital nerve is one of two branches of the frontal nerve, itself a branch of the ophthalmic nerve. the other branch of the frontal nerve is the supratrochlear nerve. not to be confused with infraorbital nerve. supraorbital nervenerves of the orbit seen from above (supraorbital nerve labeled at upper right)detailsfromfrontal nerveinnervatesskin of forehead and upper eyelid, conjunctiva of upper eyelid, frontal sinusidentifierslatinnervus supraorbitalista98a14.2.01.021ta26200fma52655anatomical terms of neuroanatomy structure the supraorbital nerve branches from the frontal nerve midway between the base and apex of the orbit. it travels anteriorly above the levator palpebrae superioris and exits the orbit through the supraorbital foramen (or notch) in the superior margin orbit. it exits the orbit lateral to the supratrochlear nerve. it then ascends onto the forehead beneath the corrugator supercilii and frontalis muscles and divides into a medial branch and lateral branch. function the supraorbital nerve provides sensory innervation to the skin of the lateral forehead and upper eyelid, as well as the conjunctiva of the upper eyelid and mucosa of the frontal sinus. additional images superior view of a dissection of the left orbit. the frontal nerve can be seen dividing into the supratrochlear nerve, medially and the supraorbital nerve, laterally. anterior view of the orbit. the supraorbital nerve can be seen exiting the orbit through the supraorbital notch with the supraorbital artery.