Female anatomy Flashcards
1
Q
Major reproductive organs
A
- ovaries
- fallopian tubes (oviducts, uterine tubes
- uterus
- vagina
2
Q
List the supporting structures
A
- broad ligament
- ovarian ligament
- suspensory ligament
- round ligament
- uterosacral ligament
3
Q
Broad ligament
A
supports ovaries and oviducts
-attaches them to walls and floor of pelvic cavity
4
Q
ovarian ligament
A
ovaries to uterus
5
Q
suspensory ligament
A
ovaries to lateral pelvic wall
6
Q
round ligament
A
uterus to anterior pelvic wall
7
Q
uterosacral ligament
A
cervix of uterus to sacrum
8
Q
ovaries
- func
- structure
A
- female gonads
- func: produce ova thru oogenesis and produce hormones
- covered by outer germinal epithelium and inner Tunica albuginea (CT)
- Outer cortex = follicles with oocytes and oocyte development
- Inner medulla = blood vessels and nerves
9
Q
ovarian follicles
- what’s in them
- what are the stages
A
-each houses an oocyte (primary = 2n; secondary = 1n)
Stages:
- primordial
- primary
- secondary
- tertiary/ graafian/ vesicular/ antral
10
Q
Primordial follicles
A
- single layer of FLAT cells (granulosa cells) around primary oocyte
- “bird nest”
- appear during fetal development
- born with 2 million
11
Q
Primary follicles
A
- primary oocyte enlarges
- oocyte secretes glycoprotein that surrounds the oocyte –> zona pellucida
Zona granulosa
- Early stage: granulosa cells are single layer of cuboidal cells
- Late stage: multiple layers of granulosa cells
Thecal cells appear around follicle –> flat
12
Q
Secondary follicles
A
- primary oocyte enlarges more
- zona pellucida thickens
- zona granulosa increases in thickness (more cells) –> secretes follicular fluid that accumulates bt cells
- theca interna forms –> increase in thecal cells around follicle
13
Q
Tertiary Follicles
A
- Antrum forms –> fluid filled areas merge and almost completely surround oocyte
- More thecal cells –> theca interna and theca externa
- granulosa cells: corona radiata surround oocyte and is part of cumulus oophorus
14
Q
Ovulation
A
- thinning and weakening of follicular wall of most developed follicle –> ruptures
- secondary oocyte passes through tear in follicular wall along with corona radiata and zona pellucida
15
Q
How long does it take a follicle to fully develop?
A
about a year