Female Reproductive Flashcards

1
Q

undifferentiated female sex cell and what it matures into, # of chromosomes, and where found

A

oogonia into primary oocyte, 46 chromosomes, in ovary

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2
Q

what do you have after meiosis I

A

one secondary oocyte and one polar body

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3
Q

what do you have after meiosis II

A

3 polar bodies and 1 mature OVUM

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4
Q

what does a primary oocyte consist of and the name

A

primary oocyte + 1 layer of granulosa cells= primary follicle

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5
Q

when is egg potential determined

A

at birth

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6
Q

primary follicle

A

primary oocyte + 1 layer of granulosa cells

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7
Q

before birth, what happens to primary oocytes

A

go into meiosis I but FREEZE before completing meiosis I

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8
Q

when do primary oocytes complete meiosis I and start meiosis II

A

puberty

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9
Q

2 phases of ovarian cycle and duration

A

follicular phase and luteal phase, 14 days each

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10
Q

follicular phase

A

follicular growth, primary oocyte completes meiosis I and becomes secondary oocyte and begins meiosis II, follicular development

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11
Q

day one of ovarian follicular phase marks…

A

day one of menstrual bleeding

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12
Q

new outer cell layer in primary oocyte in follicular phase

A

thecal cells

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13
Q

gel-like secretions from granulosa cells in follicular phase

A

zona pellucida around primary oocyte

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14
Q

what happens to granulosa cells as oocyte grows in follicular phase

A

proliferation

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15
Q

2 cells that produce estrogen and necessary for oogenesis to continue

A

granulosa cells and thecal cells

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16
Q

antrum

A

forms in follicular phase of oogenesis ovarian cycle; fluid-filled, high estrogen levels from granulosa cells, becomes larger as cell continues through cycle

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17
Q

4 structures after day one of menstrual bleeding

A

thecal and granulosa cells (estrogen), antrum, zone pellucida, primary oocyte

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18
Q

when during oogenesis, follicular phase of ovarian cycle, does meiosis I get completed and begin meiosis II

A

day 13

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19
Q

graafian follicle

A

one of developing follicles accelerates to form secondary oocyte in follicular phase; mature follicle

20
Q

cell at end of follicular phase and new structure

A

secondary oocyte, graafian (mature) follicle

21
Q

what happens after follicular phase (14 days)

22
Q

what stimulates ovulation

A

increase in luetenizing hormone (LH) from anterior pituitary

23
Q

path of secondary oocyte (granulosa cells, antral fluid) in ovulation

A

abdominopelvic cavity –> ONE uterine tube, no structure connecting ovary and uterine tube

24
Q

what happens as result of ovulation if fertilized in uterine tube

A

meiosis II completed and forms MATURE OVUM

25
corpus luteum and when it develops
LUTEAL PHASE; cells of ruptured follicle after ovulation that remain on the ovarian surface
26
progesterone
a steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy; some estrogens
27
how long does ovulation last
day 14-day 19
28
if theres no pregnancy after ovulation in luteal phase what happens
corpus luteum degenerates on day 24 forming corpus albicans
29
corpus albicans
As the corpus luteum is being broken down by macrophages, fibroblasts lay down collagen forming corpus albicans
30
what happens after ovulation in luteal phase if there is pregnancy
hCG prevents corpus luteum disintegration so it remains active THROUGH TERM
31
hCG
human chorionic gonadotropin: prevents disintegration of corpus luteum in luteal phase if pregnant during ovulation
32
what connects female reproductive organs attached inside body
suspensory ligament attached to pelvic wall/ovary
33
3 layers of uteran wall
inside: endometrium middle: myometrium outer: perimetrium (serosa)
34
all structures of uterine tube (fallopian tube)
ampulla, isthmus, infundibulum, fimbriae
35
space between labia minora
vestibule
36
perineum
urogenita triangle and anal triangle
37
greater vestibular gland (Bartholin's)
most secretions from cervical glans
38
hormone from hypothalamus (follicular phase)
gonadotropin releasing hormone (GnRH)
39
hormones from anterior pituitary (follicular phase")
follicle stimulating hormone (FSH) and luteinizing hormone (LH)
40
FSH and LH do what
ovary follicular development in follicular phase, produce inhibin (LH) and estrogen (FSH)
41
2 hormones from anterior pituitary in ovulation phase
Lh and FSH to ovary, mature follicle for ovulation in response to LH, estrogen level-FSH
42
early hormone control in luteal phase
prep. for pregnancy: mod. levels of estrogen and progesterone (by CL) prevent neg. feedback mechanisms
43
late hormone control in luteal phase
no pregnancy: HIGH estrogen and progesterone INHIBIT GnrH and LH secretion in brain (neg. feedback)
44
result of late hormone control in luteal phase
low LH causes corpus luteum to degenerate
45
pregnancy hormone control in luteal phase
high hCG to prevent CL breakdown