1. Human Reproductive Systems Chapter 50, section 3 only

5. Hormonal Regulation in Males Gonadotropin-releasing hormone (GnRH) follicle-stimulating hormone (FSH) and luteinizing hormone (LH). InhibinTestosterone  = ‘stimulates the release of’

7. Humans & other primates Cats, dogs, and cows Rats, mice, and rabbits

9. Hormonal Regulation in Females Gonadotropin-releasing hormone (GnRH) follicle-stimulating hormone (FSH) and luteinizing hormone (LH). EstrogenProgesterone  = ‘stimulates the release of’

11. Two Phases of a 28-day Ovarian Cycle Follicular phase (day 1-13) Ovulation occurs on day 14 of a 28-day cycle Luteal phase (days 15–28)

12. Anatomy of ovary and follicle Egg follicles mature, from primary follicles to Graafian follicles. When the egg is released, the empty follicle becomes the hormone-secreting corpus luteum. Luteal Phase (days 15-28) Follicular Phase (days 1-13) Ovulation (day 14)

13. Menstruation (days 1-5) Proliferative phase (days 6-13) Ovulation occurs about day 14 Secretory phase (days 15-28) The Uterine Cycle

14. The ovarian cycle corresponds to the menstrual cycle so that the endometrium is healthy for a successful implantation.

16. Fertilization and Pregnancy If fertilization occurs, the embryo implants in the endometrium. No new ovulations occur during this time.

18. Implantation Placenta  human chorionic gonadotropin (HCG)  corpus luteum and uterine lining maintained. Eventually, the placenta will produce sufficient estrogen and progesterone.