THE FEMALE ORGANS OF GENERATION. 



247 



large and medium sized arteries, afc times constituting a sheath 

 for the vessels. In the stroma of the parenchymal zone the 

 connective- tissue forms an outer layer of short, dense fibres 



FIG. 107. From the ovarium of a rather old bitch ; portion of a sagittal section, a, germ-epithelium ; 

 ft, &, ovarial tubes ; c, c, younger follicles ; d, older follicle ; e, discus prollgerus, with egg ; /, epithelium 

 of a second egg in the same follicle ; flf, tunica fibrosa folliculi ; A, tunica propria folliculi ; i, follicular 

 epithelium (membrana granulosa); , collapsed, degenerated follicle; f, vessels: TO, TO, cell-tubes of the 

 parovarium, both longitudinal and transverse sections ; j/. tubular sinking in of the germ-epithelium into 

 the substance of the ovary ; , commencement of the germ- epithelium close to the lower border of the 

 ovary. Waldeyer. 



which run in every direction, and an inner one abounding in 

 cells, in which the follicles are seen. 



The blood-vessels enter the ovary at the hilum. The arteries 

 have a spiral, corkscrew-like course through the organ. At 

 the hilum the veins form a convoluted mass, the bulb of the 



