a-short-review-of-histology

The Ductuli Efferentes:

There are 12-15 ductuli efferentes which arise from the rete testis
These tubules are lined by both absorptive and by ciliated epithelial cells
The absorptive cells absorb some of the fluid which supported the spermatozoa when they were released into the lumen of the seminiferous tubules
This creates a negative pressure which helps to draw spermatozoa out of the blind ended seminiferous tubules
The ciliated cells also draw spermatozoa out of the seminiferous tubules by causing movement of the fluid in which the spermatozoa are suspended into, and through, the ductuli efferentes
These processes, together with back pressure created by the continuous production of spermatozoa, and the peristaltic action of the myoid cells around the seminiferous tubules, combine to draw spermatozoa out of the seminiferous tubules and through the ductuli efferentes to be delivered into the epididymis

Micrograph of The Ductuli Efferentes: