Anatomy Anterior ethmoidal nerve is a branch of nasociliary nerve. All of the following areas are supplied by anterior ethmoidal nerve, EXCEPT: A Maxillary sinus B Interior of nasal cavity C Dural sheath of anterior cranial fossa D Ethmoidal air cells 💡 Explanation Anterior ethmoidal nerve is a branch of nasociliary nerve. All of the following areas are supplied by anterior ethmoidal nerve, EXCEPT: ✓ Correct Answer: A. Maxillary sinus