chapter 17-reproductive system Flashcards
passage of sperm
- seminiferous tubules
- epididymis
- vas deferens
- ejaculatory duct
- urethra
- penis
what are the main 3 male hormones
FSH, LH, testosterone
what hormones act on sertoli cells which are located in the seminiferous tubules
FSH
which hormone acts on the leydig cells to stimulate testosterone production
LH
steps of spermogensis
1) diploid cell called spermatogonia
2) that differentiates into primary spermatocytes
3) meiosis giving 2 haploid secondary spermatocytes
4) meiosis giving 4 haploid spermatids
5) matured sperm=spermatozoa
what part of the sperm contains enzymes that penetrate the ovum
acrosome
what is as multilayered sac of cells that contain, nourishes and protects the ovum
follicles
what produces estrogen in the female reproductive system
follicles
what hormone is secreted by ovarian follicles and the corpus letup and is responsible for the thickening of the endometrium and contributes to female sexual characteristics
estrogen
what hormone is secreted by the corpus luteum during the luteal phase of the menstrual cycle and stimulates the development and maintain of endometrium in preparation of implantation
progesterone
what phase is it when blood estrogen levels increase bc of a decrease in progesterone from the previous cycle what causes a decrease in GnRH inhibition resulting in increase FSH = increase estrogen
follicular
what phase has a surge of LH, exterior of the follicle turns into he corpus luteum
ovulation
what phase due to its negative feed back look with its high LH causes increase production of progesterone and estrogen causes a decrease LH causing a destruction of the corpus luteum
luteal phase
what phase bc of its drop in LH and decrease in progesterone causes the endometrium to shed
menstruation
what hormone does placenta produce and is an analog of LH so it maintained the corpus luteum
hcG - human chronic gonadropin
