This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Pain in post 1/3 tongue after tonsillectomy Is due to injury to - 
Select and explain. 
A. VII nerve, B. IX nerve, C. V nerve, D. XII nerve
B: IX nerve
Answer: B: IX nerve 
Explanation: Taste sensation as well as general sensations from posterior 1/3 of tongue are carried by glossopharyngeal nerve.