female repro Flashcards
The ovary is covered by the ________ (peritoneum) which has a tunica albuginea and a cortex which contains the __________ and a deeper medulla containing mostly vascular tissue.
germinal epithelium; developing follicles and stromal cells
The ovarian follicle goes through a series of developmental stages leading to ovulation. During this development the oocyte is
arrested
As the follicle develops the stromal and follicular cells differentiate. The stromal cells develop into ______ while the follicular cells develop into ________
theca externa and theca interna cells; granulosa cells
The theca externa cells are ________ in nature
connective tissue
The theca interna cells produce ________ which is secreted to the granulosa cells where it is converted to _________.
androstenedione; estradiol (estrogen)
The _______ is amorphous substance secreted between the granulosa cells and the oocyte.
Cellular processes from the oocyte and the granulosa cells penetrate the zona and contact each other through _______.
zona pellucida; gap junctions
During development the ______ secrete liquor folliculi into intercellular spaces. When these spaces become evident the follice is classified as a ________. This fluid contains several secretory products (progesterone, estradiol, inhibin etc.) Over time the spaces coelesce into a larger space called the _____.
granulosa cells; secondary follicle; antrum
The granulosa cells which surround the oocyte are termed the ________ and are attached to the other side of the follicle by the
corona radiata; cumulus oophorus
The mature follicle continues to enlarge. It contains a well defined ________. Just before ovulation the cumulus oophorus breaks down and the _______ floats free in the antrum
ampulla; oocyte
At ovulation the follicle swells through the _______ and _______ and bursts, releasing the egg into the pelvic cavity
tunica albuginea; germinal epithelium
The first meiotic division is completed just prior to _____. The second meiotic division occurs only if ______ occurs. (This typically occurs in the fallopian tube)
ovulation; fertilization
________, from follicular cells, prevents meiotic division from being completed Just prior to ovulation the oocyte becomes active through ______. These leads to the completion of meiosis.
Oocyte maturation inhibitor (OMI); MPF (maturation promoting factor)
Before ovulation the granulosa cells produce primarily _______ after ovulation the resultant corpora lutea produces large amount of ______ which helps prepare the uterus for implantation
estrogen; progesterone
The follicle left after ovulation becomes the ______. The theca interna cells are now termed theca lutean and continue to produce ______. Granulosa cells are termed Granulosa lutean cells and produce _______ and continue to convert the androgens to estrogen.
corpora lutea; androgens and progesterone; progesterone
If pregnancy occurs the corpora is maintained for about three months, if not it forms a _______ and involutes.
corpora albucans