Seminiferous tubules 20X.jpg
Seminiferous tubules 40X.jpg
Vas Deferens 4X.jpg
Vas Deferens 20X.jpg
Vas Deferens 40X.jpg
Prostate Gland 4X.jpg
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Toggle ItemTestis 4XA: Seminiferous tubules where spermatogenesis occurs
B: Epididymis is located adjacent to the seminiferous tubules and is lined with stereociliated pseudostratified columnar epithelium
C: Tunica albuginea is a DCCTRA capsule that surrounds the seminiferous tubules
Toggle ItemTestis 40XA: Semiferous tubules
B: Tunica abulginea
Toggle ItemTubules 4XA: Interstitial or leydig cells produce testosterone when acted upon by luteinizing hormone. They are found between the seminiferous tubules
B: Spermatogenic epithelium
Toggle ItemTubules 20XA: Seminiferous tubules
B: Leydig cells
Toggle ItemTubules 40XA: Spermatagonia are the stem cells that are located at the basement membrane
B: Primary spermatocytes are the largest of cells seen in the seminiferous tubules. Their threads of chromatin a visible within the nucleus
C: Secondary spermatocytes are much smaller than the primary spermatocytes because they have gone through the first meiotic division and are now two daughter cells
D: Spermatids are even smaller after they have gone through the 2nd meiotic division. Their nuclei begin to take a pointed shape.
E: Sertoli cells give support and control sperm growth
Toggle ItemEpididymis 4XA: Stereociliated pseudostratified columnar epithelium lines the inside of the epididymis.
B: Spermatazoa are visible in the lumen of the epididymis.
Toggle ItemEpididymis 20XA: Stereociliated pseudostratified columnar epithelium
B: Sea of spermatozoa fills the lumen of the epididymis
Toggle ItemEpididymis 40XA: Stereociliated Pseudostratified columnar epithelium
B: Completely mature sperm: spermatazoa
Toggle ItemVas Deferens 4XA: Stereociliated pseudostratified columnar epithelium lines the inside of the vas deferens
B: Three muscle layers of the vas deferens
Toggle ItemVas Deferens 20XA: Stereociliated pseudostratified columnar epithelium. The epithelium contains less and less stereocilia the father away it gets from the epididymis.
B: Three muscle layers surround the outside of the vas deferens to aid in propulsion of the ejaculate
Toggle ItemVas Deferens 40XA: Stereociliated pseudostratified columnar epithelium
B: Muscularis externa
Toggle ItemProstate 4XA: Prostatic urethra goes through the prostate and is lined with transitional epithelium
B: Prostate gland epithelium. Secretory columnar cells
Toggle ItemProstate 20XA: Secretory columnar cells
B: Small beads of secretion
Penis and Urethra
Toggle ItemPenis 4XA: Corpora Cavernosa is erectile tissue that is surrounded by a tunica albuginea capsule and the two sections are separated by a medial septum DCCTRA.
B: Medial Septum separates corpora cavernosa and corpus spongiosum.
C: Corpus spongiosum surrounds the urethra and is also erectile tissue.
D: Urethra is lined by transitional epithelium