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83 terms

Histo: Female Reproductive

selections from sets created by josymariemd & julieanna
STUDY
PLAY
edema of the endometrial and mammary stromas is caused by what
progesterone
in vaginal epithelium, the amount of glycogen and the rate of sloughin are dependant on estrogen--when would glycogen levels likely be highest and why is this important?
during ovulation, facilitation of sperm activity
during the normal ovualtion cycle, estrogen produces ciliogenesis in the
oviduct cells
during the normal ovualtion cycle, estrogen produces an increase in the secretion of ___ by anterior pituitary (adenohypophysis)
LH
what is the structure of the primordial follicle
primary oocytes that have acquired a single layer of flat surrounding cells (granulosa)
the interstitial cells of the ovarian stroma secrete___. what is the likely product
estrogen, development of secondary sex characteristics at puberty
in the formation of estrogen in the ovary, ____ stimulates the ___cells to synthesize androgens from cholesterol
LH, theca interna
in menses, the ____ layer of endometrium sloughs off when concentration of ___ falls below critical levels
functional, progesterone
how does the cervical mucous secreted at mid cycle differ from that secreted during the rest of the cycles
increased volume, more hydrated
from what tissue does the ovarian theca folliculi develop
theca interna
what hormone event stimulates the menstrual phase of the endometrium
decreased progesterone
in the ovarian hair follicule, FSH stimulates the ___cells to make estrogen from androgens
granulosa
which is true about the secretory phase of the endometrium
uterine glands become highly coiled, stroma becomes edematous, spiral arteries become highly coiled
what is the significance of glycogen in the vaginal epithelium
make the environment more acidic for the sperm, to be released into the lumen when cells are sloughed off
the stroma of both the mammary glands and the endometrium become edematous in response to?
progesterone
consider the ovarian folicle, what hormone stimulates the granulosa cells in the follicular phase
FSH
consider the ovarian folicle, what do the granulosa cells do in response to FSH stimulation
make estrogen from androgens
in pregnancy, what hormone stimulates the secretion of progesterone by the corpus luteum
LH
what stimulates the LH surge
increased levels of estrogen for 36 hours
which portion of the endometrium is shed in menses
functional layer
in menses, the __ layer of the endometrium is not sloughed
basal
consider the post-pubescent female. give the effects of progesterone on the mammary gland
edema of the stroma, increase in stroma
consider the post-pubescent female. give the effects of estrogen on the anterior pituitary (adenohypophysis)
increased LH, decreased FSH, move fimbrae closer to ovary
consider the post-pubescent female. give the effects of estrogen on the vaginal mucosa
increase glycogen, sloughing of epithelium
consider the post-pubescent female. give the effects of estrogen on the oviduct
ciliogenesis increase in secretion
consider the post-pubescent female. give the effects of progesterone on the endometrium
edema of stroma
consider the effects of estrogen. in the uterus it stimulates the ___ phase of endometrium
proliferation
consider the effects of estrogen. in the mammary gland it causes
increases mitosis of the tubular ducts
vaginal glycogen comes form ____ cells and is produces in response to ___
epithelial lining, estrogen
what is the source of sexually stimulated vaginal lube
transudate from vascular plexus deep in the epithelium of vagina
what hormone stimulates the secretory phase of endometrium
progesterone
give the effects of estrogen on the oviduct epithelium
ciliogenesis increase in secretion
give the effects of estrogen on the vaginal epithelium
increase in glycogen production
give the effects of estrogen on the mamary gland
mitosis of ducts
synthesis and secretion of milk is stimulated by
prolactin
in the ovarian follicle, FSH stimulates the ____ cell to form estrogen from androgens
granulosa
consider the formation of estrogen; role of LH
stimulates theca interna to make androgen from cholesterol
consider the formation of estrogen; role of FSH
stimulates granulosa to make estrogen from androgen
what hormone stimulates the secretory phase of endometrium
progesterone
What type of epithelium do early primary follicles have?
simple cuboidal
What are the stages of follicular development?
primordial follicle-->primary follicle-->multilayered primary follicle-->secondary follicle-->graafian follicle
What is the structure of the primordial follicle?
simple squamous layer of follicular cells
What do the follicular cells develop into?
granulosa cells
What do stromal cells develop into?
theca interna and theca externa
The primordial follicle has stromal cells, but no...
theca cells
What is the nature of theca externa cells?
connective tissue
What is the function of theca interna cells?
create and secrete ANDROSTENEDIONE (androgen)
What cells convert androgens to estradiol (estrogen)?
granulosa cells
When does zona pellucida formation begin?
in the primary follicle
What is the zona pellucida?
an amorphous substance secreted between the granulosa cells and the oocyte
How do cellular processes from oocyte contact granulosa cells through the zona?
gap junctions
What do granulosa cells secrete into the intercellular space of the follicle to create the secondary follicle?
liquor folliculi
What does the liquor folliculi contain?
secretory products:estrogen, progesterone, inhibin
What does the liquor folliculi become?
ANTRUM
What are the granulosa cells surrounding the secondary follicle called?
corona radiata
How is the corona radiata connected to the other side of the follicle?
cumulus oophorous
What happens to the cumulus oophorous just before ovulation?
it breaks down, allowing the oocyte to float freely within the antrum
The mature follicle has a fully developed....
ampulla
What happens at ovulation?
the follicle swells through the tunica albiguinea and germinal epithelium, and bursts releasing the egg into the pelvic cavity
When does the first meiotic division occur?
just before ovulation
When does the second meiotic division occur?
only if fertilization occurs, in the oviduct
What kept the oocyte from meiotically dividing before just before ovulation?
oocyte maturation inhibitor
What activated the oocyte to counteract effects of OMI and mature?
MPF
Before ovulation the granulosa cell produces...
estrogen
After ovulation the corpora lutea produces...
progesterone
What is the function of progesterone?
induces growth of the endometrial lining preparing for implantation
After ovulation, the follicle becomes....
corpora lutea
After ovulation the theca interna becomes...
theca lutea, still produces androgens and progesterone
After ovulation granulosa cells are called...
granulosa lutean cells, and continue to produce progesterone and convert androgens to estradiol
If pregnancy occurs, what happens to the corpora? If it does not?
1. corpora persists for up to 3 months 2. corpora becomes corpora albicans and degenerates
A surge in what hormone induces ovulation?
LH
what are the 4 parts of the oviduct?
fimbriae, ampulla, isthmus, uterine
Where does fertilization occur?
ampulla
what types of cells are in oviduct epithelium?
peg cells (secretory) and ciliated cells
what type of epithelium is in oviduct?
simple columnar
Structure of endocervix
simple columnar epithelium, mucous glands
structure of ectocervix
stratified squamous, along with vagina
what type of secretion is used for milk production in mammary gland?
apocrine
Inactive Mammary gland is composed of
adipose tissue, CT, inactive alveoli
Lactating mammary gland is...
mostly glandular, adipose tissue has been replaced by glands, alveoli bud from duct system
What is the function of inhibin?
blocks the action of FSH from the basophils of the pituitary
What is the function of FSH?
stimulates growth of the ovarian follicle and production of estrogen
LH function
stimulates ovulation and development of corpus luteum, stimulates prog and estrog production