210 



THE ESSENTIALS OF HISTOLOGY. 



near its attachment to the broad ligament, a large number of plain 

 muscular fibres. It is covered by a layer of small columnar epithelium- 

 cells (germinal epithelium, fig. 244, a), between which may here and 

 there be seen a few larger spheroidal cells, with large round nuclei 



FIG. 244. SECTION OF THE OVARY OF AN ADULT BITCH. 



a, germ-epithelium ; b, egg-tubes ; c, c, small follicles ; d, more advanced follicle ; e, discus pro- 

 ligerus and ovum;/, second ovum in the same follicle (this occurs but rarely); g, outer 

 tunic of the follicle ; h, inner tunic ; i, membrana grauulosa ; k, collapsed retrograded 

 follicle ; I, blood-vessels ; m. m, longitudinal and transverse sections of tubes of the paro- 

 varium ; y, involuted portion of the germ-epithelium of the surface ; 2, place of the transi- 

 tion from peritoneal to germinal or ovarian epithelium. 



(primitive ova,; fig. 246, c). In the young subject the epithelium may 

 occasionally dip down into the subjacent stroma. 



The stroma is beset with vesicles of different sizes, the smallest 

 being near the surface of the organ, the larger ones placed more deeply 



