HORMONES AND REPRODUCTION 



6l 



as to which is the glandular region of the ovary. However, 

 since in these ovaries the follicle cells have a primary 

 function of supplying yolk to the growing oocytes it 



Discharged 

 oocyte 



Follicle cells 



Ruptured 

 Follicle 



Germinal 

 epithelium 



Young oocyte 



Newly Formed 

 oogonia 



Corpus 

 luteum 



Fig. 8. — A section of the ovary of a mouse 



to show the method of formation of a corpus 



luteum. 



seems improbable that they can also have an endocrine 

 function. 



The third way in which the pituitary hormones 

 affect the ovary is after ovulation when the corpus 

 luteum is being formed, and it is generally considered 



