Supratrochlear Nerve

Friday, June 24, 2011

The supratrochlear nerve is a sensory nerve which arises from the frontal nerve, which in turn is a branch of ophthalmic nerve. It leaves orbit at medial end of supraorbital margin and passes above the pulley of the superior oblique muscle, giving off a descending filament that joins the infratrochlear branch of the nasociliary nerve. The supratrochlear nerve supplies the forehead and upper eyelid.