2. A B C A: Epididymis. B: Seminiferous tubules. C: Tunica albuginea

5. A B A: Seminiferous tubule B: Leydig cells

6. A B C D E F A: Spermatagonia B: Primary spermatocyte C: Secondary spermatocyte D: Spermatids E: Spermatazoa F: Sertoli cells

9. A A B C A: Site of Spermatozoa maturation and storage. B: Stereociliated pseudostratified columnar epithelium C: Muscle layers (smooth muscle RA)

12. DCB A A: Stereociliated pseudostratified columnar Epithelium B: Inner longitudinal layer of smooth muscle RA. C: Middle circular layer of smooth muscle RA. D: Outer longitudinal layer of smooth muscle RA.

15. A A B A: Muscular wall of the seminal vesicle. B: Glandular epithelium

18. PZ: Peripheral zone TZ: Transition zone CZ: Central zone U: Urethra Cap: Capsule

21. A D C B A A: Corpora cavernosa B: Corpus spongiosum. C: Urethra D: Medial septum.

25. A B C A: Primordial follicles B: Primary follicles C: Secondary follicles

28. A: Granulosa layer B: Corona radiata C: Cumulus oophorus D: Ovum E: Theca layers F: Zona pellucida G: Antrum

31. A B C A: Ciliated simple columnar epithelium. B: Lamina propria C: Submucosa.

34. A B CD A: Simple columnar epithelium B: Endometrium C: Uterine glands D: Myometrium

37. A B A: Stratified squamous epithelium B: Smooth muscle IRA.