What are the granulosa cells surrounding the secondary follicle called?
How is the corona radiata connected to the other side of the follicle?
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....
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?
Before ovulation the granulosa cell produces...
After ovulation the corpora lutea produces...
What is the function of progesterone?
induces growth of the endometrial lining preparing for implantation
After ovulation, the follicle becomes....
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?
What happens to the secondary oocyte after ovulation?
it is directed to the oviduct by the fimbriae
what are the 4 parts of the oviduct?
fimbriae, ampulla, isthmus, uterine
Where does fert occur?
what types of cells are in oviduct?
peg cells and ciliated cells
what type of epithelium is in oviduct?
Structure of endocervix
simple columnar epithelium, mucous glands
structure of ectocervix
stratified squamous, along with vagina
Mucous glands of the ectocervix may become blocked to form what?
What characterizes primary villi? secondary? tertiary?
1. syncytiotrophoblast and cytotrophoblast 2. addition of mesenchym 3. formation of blood vessels
What do the stromal cells of the uterus become?
decidua, to help nourish the early implant
What gives rigidity to the umbilical cord?
mucous CT or wharton's jelly
What is merocrine secretion?
When the membrane surround protein to be released fuses with the plasma membrane, and only the protein is released
ex. milk from mammary gland, and some sweat glands, produces secretion in tiny vesicles for stimulus to release. surface membrane bulges out with vescicles then pinches off like cell division and releases cell. fragments of cell are released.
Inactive Mammary gland is composed of
adipose tissue, CT, inactive alveoli
Lactating mammary gland is...
mostly glandular, adipose tissue has been replaced by glands
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
stimulates ovulation and development of corpus luteum, stimulates prog and estrog production