2l6 



THE UROGENITAL SYSTEM 



-Xv 



r> i^^^^'^'Wlf-^, -AV\--- ThecafollkuK 



Stratum 

 gramdosum 



^^J 









B\}i;,i/^ 



mor 



■,f^lg membrane 



VitelUm l.i \\t?>- 



I/Jf 







■f.-i 



Fig. 229. — Primordial ova and early stages in the development of the Graafian foUide (De Lee). 



Tunica externa 

 Tunica interna 



^~'*^*-^j^Slratum granido. 



Fig. 230. — Graafian follicle and ovum from the ovary of a fifteen-year-old girl. X 30. 



ovum is now located eccentrically and the follicle cells directly surrounding it 

 constitute the cumulus oophorus (egg-bearing hillock). About the stratum 



