The authors review first macroscopic and microscopic anatomy of the ep
ididymis. They insist on the labyrint-like structure of the efferent t
ubules composing part of the caput and they do detail the cellular typ
es lining the epididymal tubules. Furthermore, they detail the epididy
mal functions both with regard to the epithelium as to the luminal com
partment. The epithelium has mainly a function of absorption and secre
tions. In the luminal compartment the spermatozoon is the most importa
nt element: it undergoes morphological changes all along the transit,
correlated with development of fertilizing capacity. The epididymis is
regulated mainly by androgens. An extensive bibliography completes th
e aforesaid survey.