This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which of the following tongue muscle is supplied by the Cranial root of accessory nerve? \nSelect and explain. \nA. Palatoglossus, B. Hyoglossus, C. Styloglossus, D. Genioglossus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Tongue muscles develop from occipital myotomes, so the cranial nerve XII (hypoglossal nerve) supplies all intrinsic and three extrinsic muscles. Only palatoglossus is supplied by the cranial root of accessory through pharyngeal plexus and is developed from mesoderm of the sixth arch.Ref: Chaurasia; Volume 3; 6th edition; Page no: 253', 'role': 'assistant'}]