The cell which forms blood-testis barrier is: (A) Spermatogonia, (B) Primary spermatocyte, (C) Leydig cell, (D) Seoli cell
Answer is D. 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.