The male reproductive system produces and transports sperm cells and secretes male sex hormones. The testes produce sperm and hormones, while the epididymis, vas deferens, seminal vesicles, prostate gland, and bulbourethral glands are accessory organs that store, transport, and contribute secretions to semen. The female reproductive system produces eggs and sex hormones and provides a environment for fetal development. The ovaries produce eggs and hormones, while the fallopian tubes, uterus, and vagina are accessory organs that support fertilization, implantation, and birth. Hormones regulate the functions of both systems in a negative feedback loop.

1. Ch. 22 Reproductive Systems

2. Specialized jobs of the Male Reproductive system: - produce and maintain the male sex cells - to transport these cells to the female - to secrete male sex hormones Primary sex organs (gonads) are the 2 testes - sperm cells are formed here - male sex hormones are formed Accessory sex organs - are the other structures of the male repro. system - internal reproductive organs - external reproductive organs

3. Male Reproductive Organs

4. Male Reproductive Organs posterior view

5. Descent of Testes Usually a month or two before birth, these organs descend to the lower abdominal cavity and pass through the abdominal wall into the scrotum. Gubernaculum

6. Structure of the Testis

7. Spermatogenesis

12. Oogenesis

14. Structure of a Sperm Cell

31. Transverse Section of Female Pelvic Cavity

33. Ovary Attachments

34. Oogenesis

42. Uterine Wall

46. Mammary Glands

47. Surgical Methods of Birth Control