Human developement Flashcards
When does gametogenesis begin
prior to meiosis
In males, when does gametogenesis end
puberty
The acrosome cap is the result of modification of which organelle
golgi apparatus
What sex hormone does the hypothalamus produce, what is its target, and what does it do
GnRH, anterior pituatary, and results in the release of LH and FSH
Where do LH and FSH come from, what do they target, and what do they do
anterior pituatary, ovary, stimulates ovarian follicle growth and determination(FSH) and stimulates ovulation (LH)
Where are estrogen and progesterone produced, what do they target, and what is their effect
ovary and follicular cells (estrogen) and corpus luteum (progesterone). Both affect the uterus, vagina, oviduct, and mammary glands promoting growth and differentiation of their targets
What surround and nurture the oocyte
follicular cells
what do thecal cells do
contract
What is the mass death of oocytes seen prior to birth. What kind of process is this
oocyte atresia. Apoptosis
What are the three most common causes of miscarriages
Chromosomal abnormalities>chromosomal cleavage issues>insufficient progesterone
Where does fertilization occur
fallopian tube
what does the embryo produce to keep the corpus luteum alive
hCG
what does the corpus luteum produce and for how long
progesterone, 20 weeks
what does the corpus luteum’s secretory product do
grows the uterus
Sperm swim faster in what organ and why?
The uterus because it is alkaline
