The anterior ethmoidal artery, also anterior ethmoid artery is an artery of the head. Once branching from the ophthalmic artery, it accompanies the nasociliary nerve through the anterior ethmoidal canal to supply the anterior and middle ethmoidal cells, frontal sinus, and anterosuperior aspect of the lateral nasal wall[WP] [ http://en.wikipedia.org/wiki/Anterior_ethmoidal_artery ]