Sagittal sections of epididymo-testicular descent in humans of 43-350 mm crown-rump length [Hadziselimovic, 1983]. The gubernaculum (G) inserts proximally into the Wolffian duct (WD, double arrows) and cauda epididymis (CE). The epididymis (E) precedes the testis (T) throughout the entire process of descent into the scrotum. The processus vaginalis (Pv), external oblique fascia (EO), kidney (K), mesonephros (GM), head of the epididymis (Cp), and tail of the epididymis (CE) are indicated. The figure is reproduced from Hadziselimovic [1983] with permission.