Female Reproductive Flashcards
undifferentiated female sex cell and what it matures into, # of chromosomes, and where found
oogonia into primary oocyte, 46 chromosomes, in ovary
what do you have after meiosis I
one secondary oocyte and one polar body
what do you have after meiosis II
3 polar bodies and 1 mature OVUM
what does a primary oocyte consist of and the name
primary oocyte + 1 layer of granulosa cells= primary follicle
when is egg potential determined
at birth
primary follicle
primary oocyte + 1 layer of granulosa cells
before birth, what happens to primary oocytes
go into meiosis I but FREEZE before completing meiosis I
when do primary oocytes complete meiosis I and start meiosis II
puberty
2 phases of ovarian cycle and duration
follicular phase and luteal phase, 14 days each
follicular phase
follicular growth, primary oocyte completes meiosis I and becomes secondary oocyte and begins meiosis II, follicular development
day one of ovarian follicular phase marks…
day one of menstrual bleeding
new outer cell layer in primary oocyte in follicular phase
thecal cells
gel-like secretions from granulosa cells in follicular phase
zona pellucida around primary oocyte
what happens to granulosa cells as oocyte grows in follicular phase
proliferation
2 cells that produce estrogen and necessary for oogenesis to continue
granulosa cells and thecal cells
antrum
forms in follicular phase of oogenesis ovarian cycle; fluid-filled, high estrogen levels from granulosa cells, becomes larger as cell continues through cycle
4 structures after day one of menstrual bleeding
thecal and granulosa cells (estrogen), antrum, zone pellucida, primary oocyte
when during oogenesis, follicular phase of ovarian cycle, does meiosis I get completed and begin meiosis II
day 13
