Anterior ethmoidal aery closely relates to?: (A) Recurrent laryngeal nerve, (B) Nasociliary nerve, (C) Optic nerve, (D) Posterior ethmoidal aery
Answer is B. Nasociliary nerveOnce branching from the ophthalmic aery, 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.