Development of gonads video

In the female  the ovary develops by the invasion of the germinal epithelium by primordial sex cells. The sex cords are then formed. The mesonephric duct degenerates but the Mullerian duct persists. And the Mullerian duct forms most of the ductal systems of the female reproductive system.

In the male at 6 weeks  the sex cells (primordial cell sex cells) begin to invade the germinal epithelium and also form sex cords. There is now a connection from the mesonephric duct to the tubules. These tubules form the seminiferous tubules while the Mullerian duct degenerates.


Gonads development video

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