Nasal mucosa is supplied by: (A) Only external carotid aery, (B) Only internal carotid aery, (C) Mainly internal carotid aery, (D) Mainly external carotid aery
Answer is D. Branch of external carotid aery supplying nasal mucosa are Sphenopalatine aery, Greater palatine aery, Superior labial aery (Branch of facial aery), while, the only branch of Branch of internal Carotid aery supplying nose is Anterior ethmoidal aery.