This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
[{'content': 'Levator ani muscle includes all except \nSelect and explain. \nA. Puborectalis, B. Ishicoccygeus, C. Iliococcygeus, D. Pubocervicalis', 'role': 'user'}, {'content': "Answer: D \nExplanation: the levator ani muscle is divisible into a pubococcygeus pa , an iliococcygeus pa and an ischiococcygeus pa. the pubococcygeus pa consists of 3 types of fibres they are anterior fibres, middle fibres (constitute the puborectalis), posterior fibres. Ref : B D Chaurasia's Human Anatomy , seventh edition, volume 2 , pg. no. 460", 'role': 'assistant'}]