536 VERTEBRATE LIFE AND ORGANIZATION 



8. Describe the feed-back mechanism that regulates the production of thyroxin and 

 thyrotropin. 



9. Describe the feed-back mechanism that regulates the events of the menstrual cycle. 



10. Contrast the effects of insulin and glucagon. 



11. Compare the roles of parathormone and vitamin D in bone formation and dissolution. 



12. Name and describe the effects of all the hormones that are required for normal 

 growth. 



13. Name and describe the effects of all the hormones that are required for the normal 

 completion of pregnancy. 



14. Name and give the functions of the main hormones of the adrenal cortex and the 

 anterior lobe of the pituitary. 



15. Discuss the theory that epinephrine has a special role in emergencies. 



16. Describe the hormonal interrelations which control the development and functioning 

 of the breasts. 



Supplementary Reading 



A complete and well written discussion of the biologic aspects of endocrinology is 

 found in C. D. Turner's General Endocrinology. The principles of endocrinology and 

 their clinical applications are discussed in the textbooks of endocrinology by R. H. 

 Williams and by Hans Selye. Selye's theory of the role of stress in inducing endocrine 

 imbalances is presented in his textbook. A fascinating account of the role of hormones in 

 controlling behavior in the several classes of vertebrates is given in Frank Beach's Hor- 

 mones and Behavior. Endocrine mechanisms in other animals, particularly in inverte- 

 brates, are described by Frank Brown in Prosser's Comparative Animal Physiology. De- 

 tailed discussions of the current status of particular fields of endocrinology are found in 

 the series entitled Ciba Foundation Colloquia on Endocrinology, edited by G. E. W. 

 Wolstenholme. 



