This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Blood supply to Eustachian tube is 
Select and explain. 
A. Acending pharyngeal, B. Middle meningeal, C. Aery of pterygod canal, D. All
D: All
Answer: D: All 
Explanation: BLOOD SUPPLY OF EUSTACHIAN TUBE: 1.Ascending pharyngeal aery 2.Middle meningeal aery 3.Aery of pterygoid canal NOTES: Eustachian tube is also called auditory tube or pharyngotympanic tube Ref BDC volume3,sixth edition pg 237