THE OVARY. 



145 



shown by the numerous elongate nuclei. Search particularly for and 

 note the character of the epithelial covering.) 



2. The cortical layer, containing numerous Graafian follicles, and 

 possibly a corpus luteum. (Note the aggregation of the smaller fol- 

 licles in the extreme outer portion of the region.) 



3. The zona vasculosa. (Note the unusual thickness of the vas- 

 cular walls and the irregular outline of section, on account of their 

 tortuous course.) 



FIG. 98. SECTION OP THE OVARY FROM A WOMAN 35 YEARS OLD. Stained with Haema. and 



Eosin. x 250. 



A. Surface of the ovary. 



B. Muscular stroma. 



C. Large tortuous, thick-walled arteries of the central portion of the organ. 



D. D. Small Graafian follicles of the superficial zone. 



E. Larger follicles of the deeper portion. 



F. Membrana propria of a Graafian follicle. 



G. Membrana granulosa of the follicle. The line leads to the discus proligerus. 

 H. An ovum. 



I. Germinal vesicle. 



J. Germinal spot. 



K. An old corpus luteum. 



(H.) 



4. The Graafian follicles, (a) Their diameter, varying from 

 one-one hundredth to one-one thousandth of an inch, (b) The mem- 

 10 



