This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscles of Lower Limb, Subject name: Anatomy
[{'content': 'Structures passing through obturator foramen are all EXCEPT: \nSelect and explain. \nA. Internal Pudendal vessels, B. Obturator Nerve, C. Obturator Aery, D. Obturator Vein', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Internal Pudendal Vessels pass through greater and lesser sciatic foramina(not through obturator foramen). The obturator aery,obturator vein, and obturator nerve all travel through the canal. fig :-structure passing through sciatic foramina', 'role': 'assistant'}]