Tne Verteorate Ovary and Its Relationship 

 to Reproduction 



A. The ovary and its importance 



B. Preformationism, past and present 



C. General structure of the reproductive system of the vertebrate female 



1. General structure of the ovary 



2. General structure of the accessory reproductive organs 



D. Dependency of the female reproductive system on general body conditions 



1. Inanition 



2. Vitamins 



a. Vitamin A 



b. Vitamin B 



c. Vitamin C 



d. Vitamin E 



3. The hypophysis (pituitary gland) 



E. Activities of the ovary in producing the reproductive state 



1. The ovary as a "storehouse" of oogonia 



2. Position occupied by the primitive female germ cells in the ovarian cortex 



3. Primary, secondary, and tertiary follicles of de Graaf 



4. Hormonal factors concerned with the development of egg follicles 



a. Effects produced by the gonadotrophic hormones of the development of the 

 mammalian egg follicle 



b. Stimulating effects of the gonadotrophins on the ovaries of other vertebrates 



5. Structure of the vertebrate, mature egg follicle 



a. Structure of the mature follicle in metatherian and eutherian mammals 



b. Structure of the prototherian egg follicle 



c. Egg follicles of other vertebrates 



6. Ovulatory process; possible factors controlling ovulation 



a. Process of ovulation in higher mammals 



1) Changing tissue conditions culminating in egg discharge from the ovary 



2) Hormonal control of the ovulatory process 



b. Ovulation in vertebrate groups other than the higher mammals 



1) Hen 



2) Frog 



3) Hormonal control of ovulation in lower vertebrates 



c. Comparison of the immediate factors affecting egg discharge in the vertebrate 

 group 



7. Internal conditions of the ovary as an ovulatory factor 



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