This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen: Miscellaneous, Subject name: Anatomy
Principal blood supply to tonsil is from 
Select and explain. 
A. Lingual aery, B. Descending palatine aery, C. Ascending pharyngeal aery, D. Facial aery
D: Facial aery
Answer: D: Facial aery 
Explanation: 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.