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 are accessory muscles of inspiration except - \nSelect and explain. \nA. Serratus anterior, B. Serratus posterior superior, C. Latissimus dorsi, D. Scaleni', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Serratus anterior, serratus posterior and scalene are accessory muscles for inspiration. Latissimus dorsi is an accessory muscle for expiration.', 'role': 'assistant'}]