2. primary follicle Corpus luteum formation ovulation graafian follicle preantral follicle secondary follicle Primordial follicle

3. time 28 days Follicular Phase Luteal Phase

4. LH T TETE E FSH TTTETE theca cell granulosa cell LH FSH Steroidogenesis: follicular phase inhibin ?

5. HPG axis

7. Menstrual Cycle

10. Hormonal Control of Follicle Stimulation stimulation monthmonth before stimulation

11. % live births per transfer 0 10 20 30 40 50 60 253035404550 age % success own eggs donor eggs Note: these women are all pre-menopausal

12. Types of IVF 75% 13% 8% 3% 1%