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
[{'content': 'All of the following muscles are supplied by the mandibular nerve except: \nSelect and explain. \nA. Masseter, B. Buccinator, C. Medial pterygoid, D. Anterior belly of digastric', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mandibular Nerve\n\nMandibular nerve is given at trigeminal ganglion at the floor of the middle cranial fossa and passes through the foramen ovale to enter the infratemporal region.\nIt supplies 8 muscles developing in first pharyngeal arch: 2 tensors (tensor tympani and tensor palati), 3 elevators of mandible (MTM: Masseter, Temporalis, Medial pterygoid) and 3 depressors of mandible (Lateral pterygoid, mylohyoid and anterior belly of digastric).\nIt provides sensory innervation to the lower teeth and gum and to the lower part of the face below the lower lip and the mouth.\xa0\xa0\n\nKEY CONCEPT:\nBuccinator is a muscle of facial expression (IInd pharyngeal arch; facial nerve).', 'role': 'assistant'}]