§ 9 IMPORTANCE SEXUAL-ENDOCRINE ORGANIZATION 1 1 1 



luteum is the only secretory gland in the ovary, and solely 

 responsible for any changes in the genital apparatus (Fig. 

 76B). 



Fig. -](>. The significance of the corpora lutea and other follicular 

 derivatives in the sexual-endocrine organization in vertebrates. 



