Histology of the female reproductive organs Flashcards
What are the two distinct histologic regions of the ovary?
Cortex and medulla
In which of the two distinct histologic regions of the ovary are the ovarian follicles located?
Cortex
In which of the two distinct histologic regions of the ovary are blood vessels, lymphatic vessels and nerves located?
Medulla
The tunica albuginea lies between which layers?
Germinal epithelium and cirtex of the ovary
What are the three basic histological types of ovarian follicles?
Primordial follicles, growing follicles, mature/Graafian follicles
When does the primordial follicle first appear in the ovaries?
Third month of fetal development
Early growth of the primordial follicle is (dependent/independent) of gonadrotropin stimulation.
Independent
What is an ooplasm?
The cytoplasm of an oocyte
Which is the first stage in the development of a growing follicle: primary oocyte or primordial oocyte?
Primary oocyte
What type of cells surround the primordial oocyte?
A single layer of squamous follicle cells
The outer surface of the follicle cells is surrounded by a basal lamina. T/F
T
What type of cells surround the primary oocyte?
A single layer of cuboidal follicular cells
The primary oocyte secretes specific proteins that are assembled into an extracellular coat called what?
Zona pellucida
The zona pellucida is between which layers of cells?
Between the primary oocyte and follicular cells
Where does the granulosa layer of the primary follicle come from?
Mitosis of follicular cells
Which type of cell junctions develop between granular cells of the orimary follicle?
Gap junctions
Which cells surround the follicle to form a sheath of connective tissue cells called theca folliculi?
Stromal cells
The theca folliculi is external the basal lamina of follicle cells. T/F
T
Theca folliculi differentiates into which two layers?
Theca interna and theca externa
Which layer of the theca folliculi is highly vascularized?
Theca interna
Which layer of the theca folliculi consists mainly of smooth muscle cells and bundles if collagen fibers?
Theca externa
Which layer of the theca folliculi consists of secretory cuboidal cells?
Theca interna
The granulosa layer is (vascukar/avascular) during follicular growth.
Avascular
The stratum granulosum reaches the size of how thick before fluid-filled cavities appear?
6 to 12 cell layers
The secondary follicle is characterized by which structure?
Antrum, a fluid-filled cresent shaped cavity
What is the thickened mound of granulosa cells projecting into the antrum?
Cumulus oophorus
The cells of the cumulus oophorus that immediately surround the oocyte and remain with it is called what?
Corona radiata
Which type follicle contains the secondary oocyte?
Mature follicle or Graafian follicle
In the mature follicle, which is thicker: antrum or stratum granulosum?
Antrum
What is ovulation?
A hormone mediated process resulting in the release of the secondary oocyte from the Graafian follicle.
The corpus luteum comes from what structure?
The follicular wall - remaining granulosa and thecal cells
What are the three layers of the uterine tubes?
Serosa, muscularis, mucosa