reproduction F Flashcards

(46 cards)

0
Q

beneath the germinal epithelium

A

tunica albuginea dense CT

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1
Q

germinal epithelium

A

simple cuboidal mesothelium lining the ovary

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2
Q

oogonia

A

primordial germ cells - form during first month of gestation in the yolk sac

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3
Q

oogonia proceed by ameboid movement to this region of the embryo

A

the germinal ridges

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4
Q

primary oocytes

A

formed after the final mitosis of oogonia and suspend in prophase meiosis I until ovulation

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5
Q

how do the number of primary oocytes differ throughout a life

A

originally 3 million oogonia become 200,000 primary oocytes in an ovary- of which only 200 get ovulated and the rest undergo atresia

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6
Q

what are the 4 differences between a primary follicle and a primordial follicle

A
  1. larger oocyte 2. zona pellucida made 3. follicular cells become cuboidal from squamous 4. follicular become granulosa
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7
Q

diff between primary and secondary follicle

A

multiple layers granulosa, cortical granules in zona pellucida

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8
Q

preantral cells have these 3 properties that seconday follicles do not share

A
  1. follicular fluid-filled antrum, 2. granulosa makes gap junctions, 3. VASCULAR theca interna, and theca externa
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9
Q

which hormone makes a pre-ovulation surge to separate the oocyte into the follicular fluid

A

LH

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10
Q

the cells that withdraw their processes from the granulosa cells to suspend the oocyte in follicular fluid

A

corona radiata granulosas

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11
Q

the stage which forms a bulge on the ovary prior to ovulation

A

Mature Graafian follicle

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12
Q

cumulus oophorus

A

the connection between corona radiata granulosa and those at the edge of the follicle the may keep the oocyte from going on to second meiosis

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13
Q

avascular region that bulges out during ovulationi

A

stigma

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14
Q

the order of follicle types formed

A

primordial, primary, secondary, preandral, Graafian

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15
Q

what remains behind once the oocyte and follicular fluid are released

A

the granulosa (lutein) and theca (lutein) cells - susceptible to invasion by vessels

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16
Q

how do the functions of the corpus luteum change from their original follicle roles

A

switch from mostly estrogen to mostly progesterone

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17
Q

what is the purpose of the new endocrine function of the corpus luteum

A

to inhibit the pituitary from secreting FSH and LH

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18
Q

corpus luteum of mentruation vs CL of pregnancy

A

after 12 days the CL will degenerate BUT if fertilized, hcg will maintain the CL for 3 months until placenta takes over

19
Q

CORPUS ALBICANS

A

fibrotic corpus luteum that remains for several months before being phagocytosed

20
Q

hilus, epithelioid, and theca interna cell location

A

medulla of ovary

21
Q

non ciliated secretory cells that capacitate the incoming sperm

22
Q

simple columnar CILIATED cells of the oviduct that beat synchronously in what direction

A

TOWARD the uterus

23
Q

the 4 regions of the oviduct

A

fimbriae/ infundibulum, ambulla (2/3), ishtmus, and interstitial

24
three regions of the uterus from superior to inferior
fundus, body, cervix
25
where do ovarian cancers usually originate
in the germinal epithelium
26
what type of epithelium lines the uterus
simple columnar with epithelial glands
27
the two layers of the endometrium
stratum functionale, basale (stem cell layer)
28
arteries of the myometrium, stratum basale, and functionale
myometrium: arcuate artery, basale: straight arteries, functionale: coiled helical arteries
29
which layer of myometrium contains the arcuate artery
middle cicular
30
how does the cervix myometrium differ from the other uertine regions
it becomes fibrous CT
31
three phases of mentruation
mentrual, proliferative, secretory
32
corpus luteum discontinues progesterone secretion, spiral arteries contract, functionale becomes necrotic and discharged
mentrual phase (days 1-4)
33
mentrual flow decreases, re-epithelialization, reconstructed glands, follicular development
proliferative phase (4-14)
34
ovulation, high progesterone levels, endometrial thickening, glycogen secreted by glands, helical arteries extend
secretory phase (15-28)
35
the two differing epithelia of the cervix
lumen side: secretory simple columnar | vaginal side: non-keratinizing stratified squamous
36
lamina propria of the vagina
fibroelastic C, transudates
37
muscularis of the vagina
smooth muscle intermingles longitudinal and circular. sphynchter of sk. mus. at the opening
38
lactiferous sinus
dilation in the lactiferous duct prior to reaching the nipple for milk storage
39
difference between non-lactating and active mammary glands
no developed alveoli
40
epithelium of the lactiferous duct connecting the to nipple
simple squamous
41
epithelium of the lactiferous duct leading to the sinus
simple cuboidal (sinus too!)
42
what cells in the mammary gland become active during pregnancy
secretory cuboidal alveoli and stellate myoepithelium
43
colostrum
protein-rich fluid stored in the mammary gland until a few days after parturition
44
what hormones enable the transition from colostrum to milk
reduced estrogen and progesterone, and increased prolactin
45
the difference in lipid and protein secretion by mammary alveoli
lipids: apocrine proteins: merocrine