THE FEMALE ORGANS OF GENERATION. 



247 



large and medium sized arteries, at times constituting a slieatli 

 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 ovarinm of a rather old bitch ; portion of a sagittal section, a, germ-epithelinm ; 

 6, 6, ovarial tubes ; c, c, younger follicles ; d, older follicle ; , discus prollgerus, with egg ; /, epithelium 

 of o second egg in the same follicle ; g, tunica flbrosa folliculi ; A, tunica propria follicnli ; t, folliculur 

 epithelium (mombrnna granulosa) ; k, collapse d. degenerated follicle ; /, vessels : m, TO, cell-tubes of the 

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

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

 ovary. Walileyer. 



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 



