This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'The cell which forms blood-testis barrier is \nSelect and explain. \nA. Spermatogonia, B. Primary spermatocyte, C. Leydig cell, D. Seoli cell', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The blood-testis barrier is a physical barrier between the blood vessels and the seminiferous tubules of the testes.The name "blood-testis barrier" is misleading in that it is not a blood-organ barrier in a strict sense, but is formed between Seoli cells of the seminiferous tubule and as such isolates the fuher developed stages of germ cells from the blood.', 'role': 'assistant'}]