This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Triangles of Neck, Subject name: Anatomy
[{'content': 'Spinal part of accessory nerve supplies - \nSelect and explain. \nA. Platysma, B. Sternocleidomastoid, C. Stylohyoid, D. Diagastric', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Sternocleidomastoid o Accessory nerve (eleventh cranial nerve) has two rootsy cranial and spinal.o Spinal accessory supplies :SternocleidomastoidTrapeziuso Follow ing are the 2 parts of the accessory nerve with their distribution:I Spinal part1 Sternocleidomastoid2. TrapeziusIICranial partMuscles of the pharynx except stvlopharyngeus which is supplied by the glossopharyngeal nerveMuscles of the palate except tensor veli palatini which is supplied by the mandibular division of the trigeminal nerve.o All muscles of the tongue are supplied by the hypoglossal nerve except palatoglossus which is supplied by the accessory nerve.", 'role': 'assistant'}]