278 



GENERATION. 



It is important to remember that the ovum is not a prod- 

 uct of secretion, nor can the ovary be properly considered as a 

 glandular organ. The ovum is an anatomical element ; and the 

 ovary is the only organ in which this anatomical element can 



FIG. 26. 



Graafian follicle. Magnified 80 diameters. 1, 1. stroma of the ovary; 2, 2, convoluted, cork- 

 screw blood-vessels ; 8, fibrous wall of the follicle ; 4, membrana granulosa ; 5, cumulus pro- 

 lisrerus ; 6, zona pellucida of the ovum ; 7, vitellus of the ovum ; 8, germinal vesicle with 

 the germinal spot. (LUSCHKA, Anatomie des Menschen, Tubingen, 1S64, Bd. ii., S. 828.) 



be developed. The only process of secretion which takes place 

 in the ovary is the production, probably by the cells of the 

 membrana granulosa, of the liquid of the Graafian follicles. 



The Parovarium. The parovarium, or organ of Eosen- 

 muller, which is shown in Fig. 24 (8), is simply the remains of 

 the Wolffian body, lying in the folds of the broad ligament, 

 between the ovary and the Fallopian tube. It consists of 

 from twelve to fifteen tubes of fibrous tissue, lined by ciliated 

 epithelium, and has no physiological importance. The "Wolf- 

 fian bodies will be fully described in connection with the de- 

 velopment of the genito-urinary system. 



