This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, larynx and trachea and cranial nerves 3,4,6, Subject name: Anatomy
All of the following muscles are supplied by cranial accessory nerve except 
Select and explain. 
A. Palatopharyngeus, B. Stylopharyngeus, C. Salpingopharyngeus, D. Middle constrictor
B: Stylopharyngeus
Answer: B: Stylopharyngeus 
Explanation: All the muscles of pharynx are supplied by the cranial pa of accessory nerve (XI) except the stylopharyngeus which is supplied by the Glossopharyngeal nerve