ACCESSORY MAMMALIAN REPRODUCTIVE GLANDS 



417 





Fig. 6.41. Mouse seminal vesicle, intact male treated with testosterone propionate for 7 

 days. Electron micrograph X 4200; osmic acid fixation with sucrose. Note increase in cell 

 height, abundance of secretory granules and contortion of the ergastoplasmic membranes. 

 (From H. W. Deane and K. R. Porter, unpublished.) 



is characterized by flattened vesicles. Bran- 

 des and Portela doubted that there is trans- 

 port of secretory material to these cisternae 

 and release from the intracisternal spaces 

 into the acinar Imnen. They suggested an 

 apocrine type of release involving extrusion 

 of portions of the apical cytoplasm from the 



free margin of cells. The possibility of im- 

 plication of the Golgi apparatus in the pro- 

 duction of secretory material was consid- 

 ered. 



From a study of the rat, Brandes and 

 Groth (1961) concluded that the dilated 

 cisternae of coagulating glands, dorsolat- 



