Male- testes, epididymis, ductus deferens

what do testes do

produce sperm and androgens like testosterone

what does epididymis do

site of continuing maturation of sperm, transport of sperm

what does ductus deferens do

carries sperm to pelvic urethra

what do accessory sex glands do

contribute to ejaculate

what does penis do

contains cavernous urethra, carries urine or ejaculate out of body

Scrotum structure

contains smooth muscle, thin epidermis, helps maintain function

Testis characteristics

thick capsule of dense irregular CT (tunica albunginea), CT create parenchyma, periphery covered by tunica serosa

Name spermatic pathway in humans

seminiferous tubule, epididymis, ductus vas deferens, membranous urethra, cavernous urethra, prostatic urethra

Exocrine portion of testes

couled tubular gland secreting spermatozoa (seminiferous tubules), contains interstitial cells (leydig cells), stratified epithelium seminiferous tubules

What e-cells are in seminiferous tubule

spermatogenic cells, sertoli cells

List arrangement of layers in testes

Leydig cells, peritubular cells (tunica propria), sertoli cells, developing sperm

3 Phases of spermatogenesis

Spermatogonial phase, spermatocyte phase, spermatid phase

Describe spermatogonial phase

stem cells divide in seminiferous tubule, spermatogonia exposed to hormones

describe spermatocytes phase

meiosis, primary undergo meiosis to reduce chromosome numbers, becoming secondary spermatoytes

What happebs during spernatid (spermiogenesis)

spermatids differentiate into sperm, develop flagellum and get structure

What is epididymis lined by

pseudostratified stereociliated columnar epithelium, has smooth muscle and loose CT, blends with tunica albuginea

What is ductus deferens lined by

pseudostratified sterociliated columnar epithelium, thick tunica muscularis, tunica serosa