286 NORMAL- HISTOLOGY AND ORGANOGRAPHY. 



live at least a month, while in bats copulation takes 

 place in the fall and fertilization follows in the spring. 



Excretory Ducts of the Testis. These ducts are 

 the tubuli recti, rete testis, vasa efferentia, epididy- 

 mis, and vas deferens. 



Tubuli Recti. The seminiferous tubules, towards 

 the mediastinum, unite at acute angles to form a 



Vas deferens. 



Epididymis 

 (globus major). 



Vasa efferentia. 

 Tubuli recti. 

 Rete testis. 



Epididymis 

 (globus minor). 



Fig. 211. Diagram of human testicle, longitudinal section. 



series of short parallel straight tubes called the tu- 

 buli recti. They are clothed by a simple layer of low 

 cubical epithelium. 



The rete testis consists of a reticulum of tubules 

 formed by an anastomosis of the tubuli recti in the 

 mediastinum. They are lined by simple columnar 

 epithelium. 



The vasa efferentia are tubules that lead from the 



