The lateral limits of the cytoplasm of epithelial cells are distinct. At the apex of these cells, perpendicular sections of the terminal bars, the sites of the junctional complexes, are clearly visible (arrows). At the apex of the cells there are long flame-like projections called stereocilia (red arrowheads). With the electron microscope, these stereocilia were shown to be composed of tufts of long non-motile microvilli.

The spermatozoa (Z), present in the lumen of the duct, are labelled.

Stain: H–­­E
Magnification: ×800