Stereocilia (epididymis)

The stereocilia of the epididymis are structure which aid in absorption.

Unlike the stereocilia of the ear, those in the epididymis are more like long microvilli that cover the open surface of the epididymis. These extensions increase the surface area of the cell allowing for greater absorption and secretion.

The stereocilia have no internal structure and unlike true cilia, are non-motile.