The Female Reproductive System Flashcards
Gametes are produced in the….
ovaries
Fertilization takes place in the….
oviduct
Implantation takes place in the…
Uterus
_ is critical
Hormonal control
The pituitary gland receives signals from the…
CNS
FSH
Stimulates follicular development in the ovary and spermatogenesis in the testis
Secreted by basophils
LH
Regulates ovulation and corpus luteum formation
Stimulates steroid secretion by follicle and corpus luteum
Oocyte release results from…
Increased V/P follicular fluid
Plasmin proteolysis of follicular wall
GAGs deposition
Smooth muscle contraction in theca externa
Corpus Hemorrhagicum
Follicle walls collapse
Follicle lumen fills with blood from ruptured capillaries in the theca
Corpus Luteum
Follicle walls fold
Blood is re-absorbed/digested
Granulosa cells and theca interna cells luteinize
Will support pregnancy if implantation occurs
Corpus Albicans
No implantation
Granulosa and theca cells die
Replaced with collagen
_ is the most active form of estrogen
Estradiol
Production of estradiol requires activity from…
Both Theca Lutein Cells (TLC) ad Granulosa Lutein Cells (GLC)
What is detected by most pregnancy tests?
human Chorionic Gonadotropin (hCG)
What occurs during implantation?
Uterus halted in secretory phase
Placenta produces hCG
hCG will support Corpus luteum for 4-5 months
_ follicle (s) is/are usually supported to ovulation
Only one
What happens to the follicles that do not ovulate?
They undergo atresia
What does an atretic follicle look like?
Apoptotic cell death
ZP often is seen as remnant (ZP but no cell)
Fimbria
Finger like projections of the oviduct
How does the oocyte get to the uterus?
The fimbra from the oviduct bind to the corona radiata
Ciliated cells move it into the oviduct
How long is the oocyte viable?
24 hours
What are the two cell types found in the oviduct?
- ciliated cell
- Nonciliated secretory cell (Peg Cell)
Simple Columnar Epithelium
What is the difference between the oviduct and the seminal vesicle?
Oviduct - simple columnar ciliated epithelium with Peg Cells
Seminal Vesicles - Pseudostratified columnar epithelium w/no peg cells or apical modifications - may see lipofusion
T/F: Implantation is immediate
False
What are the three layers of the uterine wall?
Inner: Endometrium
Middle: Myometrium
Outer: Perimetrium
Endometrium
Simple columnar epithelium
Uterine Glands
CT with blood vessels
Myometrium
Smooth muscle
Stratum Vascularis
Perimetrium
Serosa OR
Visceral Periotenum