1. The Male Reproductive System

2. The Testis Spermatogensis and spermiogenesis

4. Low Magnification of the entire testis TA – Tunica Albuginea E – Epididymis RT – Rete Testis

5. Low magnification of seminiferous tubules and interstitial cells

6. Seminiferous Tubules Primary Spermatocytes Sperm Spermatids Sperm

7. Seminiferous Tubules Sertoli Cells Spermatogonia

8. Seminiferous Tubule Primary spermatocytes Spermatids Arrow – sertoli cell Sperm

9. SEM of a seminiferous tubule Sg, spermatogonia; Sc, spermatocytes; Se, Sertoli cells; Ta, sperm tails

10. Diagram of Spermiogenesis

11. TEM of developing sperm embedded in a sertoli cell Sertoli Cell

12. TEM of developing sperm head AC – acrosome; PM – plasma membrane

13. TEM of developing sperm midpiece Mi – mitochondria; He – head; Cp – centriole; Cf/Pf – microtubules of flagellum

14. TEM of crossections through sperm tails Note the 9 + 2 arrangement of microtubules

15. SEM of a mature sperm cell

16. The Testis Sertoli Cells and Interstitial Cells

17. Seminiferous tubules with Sertoli Cells (Arrows)

18. TEM of sertoli cells (S and St labeled cells)

19. Interstitial or Leydig Cells (arrows)

20. Leydig Cells

21. Male Tubular System

22. Low magnification – The entire testis Epididymis Seminiferous tubules Rete Testis

23. Low maginfication of the Rete Testis Ductili Efferentes

25. Ductili Efferentes Ductus Epididymis

26. The Epididymis – pseudostratified with stereo cilia Smooth Muscle

27. The Ductus Deferens or Vas Deferens Smooth Muscle

28. SEM of the Vas Deferens Ep – epithelium; LP – lamina propria; SM – smooth muscle; Ad - adventitia

29. Lining of the Vas Deferens Pseudostartified columnar with stereo cilia

30. Low magnification of the Spermatic Cord with the Ductus Deferens (DD)

31. Associated Glands

32. Low magnification of the entire Seminal Vesicle

33. Seminal Vesicle Smooth Muscle

34. Epithelial lining of the Seminal Vesicle

35. Low magnification of the Prostate Gland

36. Low magnification of the Prostate Gland with concretions

37. High magnification of the Prostate Gland with concretions

38. The Penis