1. The Male Reproductive System
Testis and epididymis (No.38)

2. Testis and epididymis epididymis testis Mediastinum testis
Tunica albuginea

3. Tunica albuginea
testis
Mediastinum testis
epididymis

4. Seminiferous tubule
Rete testis in the medistinum testis

5. Seminiferous tubule
Boundary tissue:tunica of CT+basement membrane
Complex spermatogenic epi.

6. 1.Spermatogonium
2.Primary spermatocytes
3.Secondary spermatocytes
4.Spermatids
5.Spermatozoons 1 2 3 4

7. Sustentacular cells (Sertoli cells)
Cytoplasm is barely visible
Triangular nucleus

8. Interstitial cells (Leydig cells)
Located betw tubules
Often in groups
Large in body and eosinophilic in cytoplasm

9. Seminiferous tubule
Tubuli recti
Rete testis
Mediastinum testis

10. Tubuli recti (straight tubule)
Seminiferous tubule

11. Rete testis in the mediastinum testis
Network of irregularly shaped tubules

12. Ductule efferents
Ductus epididymis
Epididymis
Ductule efferents
Ductus epididymis

13. Ductule efferents
Ciliated cuboidal or columnar cells
Scalloped outline

14. Ductus epididymis
Pseudostratified columnar epi.
Long,irregular microvilli----stereocilia

15. THE END!