Principal blood supply to tonsil is from: (A) Lingual aery, (B) Descending palatine aery, (C) Ascending pharyngeal aery, (D) Facial aery
Answer is D. Aerial supply of tonsil: Tonsillar branch of facial aery (Principal blood supply) Dorsalis linguae branches of lingual aery. Ascending palatine, a branch of facial aery. Ascending pharyngeal, a branch of external carotid aery. Greater palatine (descending palatine), a branch of maxillary aery.