The efferent ducts are part of the testes and connect the rete testis with the epididymis. Rete testis is an anastomosing network of delicate tubules located in the testicular hilum that carries sperm from the seminiferous tubules to the vasa efferentia. ... Male Anatomy The epididymis is part of the human male reproductive system and is present in all mammals. ...
The Wolffian duct (also known as archinephric duct, Leydig's duct, and the mesonephric duct) is an paired organ found in mammals including humans during embryogenesis.
In a male, it develops into a system of connected organs between the testis and the prostate, namely the rete testis, the efferentducts, the epididymis, the vas deferens, the seminal vesicle, and the prostate.
For this it is critical that the ducts are exposed to testosterone during embryogenesis.
It was generally accepted that the efferent ductules, epididymis, vas deferens, and seminal vesicles are mesonephric (Wolffian) duct in origin (Setchell, 1978), with the former two regions arising from the upper segment, the vas deferens from the middle segment, and the seminal vesicles from the lower segment (Howards, 1983).
The delineation between rete testis and the efferentduct is abrupt, evidenced by the epithelium changing from low cuboidal to columnar in a sharp transition and a marked increase in peritubular capillaries (Amann et al., 1977; Robaire and Hermo, 1988).
Lipid droplets in the epithelium of rat proximal ductuli efferentes.
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