Emmen, J.M.A.

testi gubernaculum development androgen testis descent descent expression fetus factor cranial testicular teste receptor gubernacular differentiation cranial mesentery control gubernaculum development gonad study effect tissue mouse action ligament figure mesentery phase hormone insl 3 culture position cranial suspensory ligament system gubernacular bulb growth cryptorchidism testicular descent androgen receptor kidney analysis explant structure mesenchymal hutson ovary presence gubernacular explants process urogenital mutation postnatal sex differentiation androgen action leydig schoot animal exposure proliferation section van der schoot outgrowth function cranial part suspensory csl development tract mesenchymal cells gonadal 1 ns 13 muscle inguinal level layer female ar expression transabdominal estrogen leydig cells testosterone