<prompt> Nasal mucosa is supplied byOnly external carotid aeryOnly internal carotid aeryMainly internal carotid aeryMainly external carotid aery  <response>: 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. 