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4 functions of reproductive system

produce gametes, fertilization, pregnancy, gonads produce both gametes and hormones

ducts sperm goes through

seminiferous tubule, epididymis, dustus deferens, ejaculatory duct, urethra

seminiferous tubules

site of sperm maturation

sertoli cells

nourish spermatogenic cells, secrete inhibin, phagocytosis, fluid for transport, control spermatogenic movement

insterstitial cells

secrete testosterone

structure of sperm

head (nucleus and acrosome), flagellum

ductus deferens

stores sperm

spermatic cord

supporting structure

corpus cavernosa

2 columns above urethra

corpus spongiosum

surrounds urethra

primordial follicle

at birth

primary follicle

primary oocyte

secondary follicle

secondary oocyte

corpus luteum

ruptured follicle

corpus albicans

nonfunctional, disintegrates,

how is uterine tube site of fertizilation

fimbriae sweet oocyte into tube, cilia and peristalsis move it along, sperm reaches it and fertilizes it, zygote reaches uterus 7 days after ovulation


lines (shed) unless implantation of zygote





positive feedback during mid cycle

an increase in estrogen causes the anterior pituitary to release LH

fluid in seminal vesciles

alkaline, frustose, prostaglandins, clotting proteins, semen

fluid in prostate gland

citric acid, proteolytic enzymes, seminalplasma

fluid in bulbourethral gland

alkaline fluid, mucous

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