EX3 Histology - Female Reproductive System Flashcards
What is the endocrine and exocrine function of the ovaries
endocrine - produce estrogens and progestogens; steriodogenesis
exocrine - produce the female gamete (ovum); gametogenesis; produce and ovulate a secondary oocyte
These promotes the growth and maturation of internal and external sex organs, promotes menstruation and development of secondary sex characteristics
estrogens
These prepare internal sex organs (uterus) for pregnancy by promoting changes in endometrium and mammary glands for lactation
progestones
These are found within the cortex of the ovaries and composed of an oocyte surrounded by one or more layers of epithelium
ovarian follicles
What indicates the developmental state of the oocyte
size of the ovarian follicles
What are the three basic types of ovarian follicles
primordial follicles
growing follicles (primary and secondary)
mature (or Graafian) follicles
What stage of the follicle has squamous epithelium
primordial follicle
In the third month of fetal life, what happens, what stage of meiosis is it stuck
PGCs migrate from yolk sac; the oogenia divide into primary oocyte and rest at prophase of meiosis 1
How many ovarian folic in the fetus? ovulated?
600,000-800,000 at birth
~400 ovulated (lost via atresia)
This is a sheath of connective tissue cells that develop from the stromal cells surrounding the developing follicle; found external to the basal lamina
theca folliculi
The theca follicli differentiates into which two parts
theca interna
theca externa
These are cubodial secretory cells and in response to LH, they synthesize and secrete androgens (estrogen precursor); endocrine; fibroblasts, collagen bundles and lots of vessels
theca interna
This is the fibrous outer portion; smooth muscle cells, fibroblasts, and collagen bundles
theca externa
This is produced by(and is) granular cells; produces follicular fluid and is indicative a secondary follicle
antrum (secondary Antral follicles)
This hormone stimulates follicle cells to grow, increase in size, and the growth of an oocyte
FSH; from pituitary gland