418 



PHYSIOLOGY OF GONADS 



Fig. 6.42. Moil. M - :,,:ii il , i -id, , nui n, il n, ,i , I i_ (,;(,) l-.l, ,ii,m- 



micrograpli X 36,000: omiik- ;ici(l tixation; section liiat((l with iii.myl cicclatc to enhance the 

 density of nucleoi)ro1(Mn.-^. Infianuclear region of an epithehal cell; nucleus at the top ; ergasto- 

 pla.sniic channel.s with inomhianes studded with particles; arrow indicates a mitochondrion. 

 (From H. W. Deane and K. R. Porter, unpublished.) 



eral and ventral prostates contain secretory 

 products, and that it is probable that the 

 membranes of the endoplasmic reticulum 

 (or the granules associated with them) 

 play an active role in the syntheses of the 

 proteins present in the glandular secretions. 

 Attemi)ts have been made to correlate 



structure of cells as observed by light and 

 electron microscopy with histochemical lo- 

 calizations of mucoproteins (PAS reaction), 

 alkaline and acid phosphatase activity, and 

 basophilic material. Various interpretations 

 have been offered for the functional sig- 

 nificance of these substances, all of which 



