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
Circumvallate papillae are supplied by 
Select and explain. 
A. Chordotympanic nerve, B. Vagus nerve, C. Glossopharyngeal nerve, D. Fascial nerve
C: Glossopharyngeal nerve
Answer: C: Glossopharyngeal nerve 
Explanation: Glossopharyngeal nerve is the nerve of the third branchial arch and supplies the only muscle of that arch, the stylopharyngeus. It carries sensory fibers from the posterior one-third of tongue, tonsil, pharynx, middle ear, taste fibers from posterior one-third of the tongue and circumvallate papillae. Lastly, it provides secretomotor fibers to parotid glandReference: Chourasia head and neck; 6th edition; Page no:165