16 week fetal female reproductive system

3D Model

In the female, there are no Leydig cells to produce testosterone. In the absence of this hormone, the mesonephric ducts degenerate, leaving behind only a vestigial remnant – Gartner’s duct.

References: 1-anatomy of human embryo electron microscope ( 1st Edition ) . 2-Netters atals of human embryology (Updated Edition). 3-Hinchliffe SA, Sargent PH, Howard CV, Chan YF, van Velzen D. Human intrauterine renal growth expressed in absolute number of glomeruli assessed by the disector method and Cavalieri principle. Lab Invest. 1991;64:777–84. 4-Milo Rasouly, Hila & Lu, Weining. (2013). Lower urinary tract development and disease. Wiley interdisciplinary reviews. Systems biology and medicine. 5. 10.1002/wsbm.1212.