Lecture 19- Female Reproductive Flashcards Preview

Histology > Lecture 19- Female Reproductive > Flashcards

Flashcards in Lecture 19- Female Reproductive Deck (14)
Loading flashcards...
1
Q
What are the layers of the ovary?
A
1) surface epithelium (simple cuboidal)
2) tunica albuginea (dense CT capsule)
3) cortex (CT stroma with ovarian follicles)
4) medulla (loose CT with blood vessels)
2
Q
Where are the follicles found?
A
cortical region
3
Q
What is an ovarian follicle?
A
- oocyte and its surrounding cells
- there are different maturation stages of the follicle
- primordial, primary, secondary, mature
4
Q
Oogonia (germ cells) divide by mitosis to what two daughter cells?
A
oogonia and primary oocyte
5
Q
How many primordial follicles are females born with?
A
1-2 million
6
Q
When is the primary oocyte arrested?
A
meiosis
7
Q
What effect does FSH have on the primordial follicle?
A
- Oocyte growth
- Follicular cell proliferation
- Stromal fibroblast proliferation and differentiation
8
Q
What is the zona pellucida?
A
Rim of glycoproteins, important for sperm binding
9
Q
What extra layer is found in the multilaminar primary follicle?
A
granulosa
10
Q
What layers are found in the secondary follicle?
A
- oocyte
- zona pellucida
- corona radiata ( granulosa cells)
- follicular antrum (fluid filled)
- membrana granulosa
11
Q
What does the theca interna secrete?
A
steroid precursors
12
Q
What does the theca externa do?
A
support
13
Q
In general, how do the cells of the theca interna differ form the theca externa?
A
the cells in the theca interna are more round
14
Q
What does the theca interna secrete?
A
androgens--> estrogen from the granulosa