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

A B A: Seminiferous tubule B: Leydig cells

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

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

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.

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

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

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

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

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

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

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

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