Histology of the female reproductive system Flashcards
different factors for female infertility
ovulatory disorders
tubal damage
uterine or peritoneal disorder
other causes
cervical cancer
ovulatory disorders
most common cause of female infertility
25% of couples
tubal damage
20% of couples
patency e.g. ectopic pregnancy
previous sterilisation
uterine or peritoneal disorder
10% of couples
endometriosis or fibroids
pelvic inflammatory disease
other causes for female infertility
lifestyle
age
previous/current infection
pelvic inflammatory disease
label the image
relationship between the ovaries and Fallopian tube
in close proximity and held together by the broad ligament
not directly connected
label the image
what is in the image and label
ovary
H= hilum
m= medulla
C= cortex
the ovary
surface covered by single layer of epithelium
has 3 regions:
1. hilum which is entry/exit fo vasculature and lymphatic
2. medulla inner region
3. cortex containing gametes and support cells (stroma)
hypothalamic pituitary ovarian axis
what is in the image
ovary
what are the stages of ovarian follicular development
what is follicle maturation
each mature follicle contains an oocyte and its outer zone pellucid as well as the support cells of the follicle (granulosa and theca cells) and the fluid filled astral cavity
stages of follicular maturation
pre-antral
late pre-antral
astral
pre-ovulatory
follicle in pre-antral
primary follicle
follicle in late pre-antral
secondary follicle
follicle in antral
late secondary or tertiary
follicle in pre-ovulatory
mature/tertiary/ Graafian/ dominant
primordial follicle
follicles develop during embryogenesis and the female has their full complement of oogonia by the second trimester of pregnancy
what is in the image and what do the labels show
primordial follicle
e= epithelium
g= primordial germ cell
S= mesenchymal stroma is embryonic connective tissue that provides the cellular framework of the ovary
what is in the image and label
o: oocyte
g: granulosa cells, support cells
what is in the image and label
primary follicle
O: oocyte
ZP: zona pellucida
G: granulosa cells
zona pellucida develops at this stage
is a glycoprotein coating that pserm must penetrate to get into oocyte during fertilisation
granulosa cell layers thicken
what is in the image and label
secondary follicle
O: oocyte
ZP: zona pellucida
G: granulosa cells
TI: theca interna, spindle
TE: theca externa, plump
C: antral cavity
granulosa and theca internal are secretory
antral cavity filled with necessary supportive fluid
what is in the image and describe
Tertiary/Pre-ovulatory/Mature/Dominant/Graafian Follicle
Fluid filled cavity enlarges to form the antrum
Granulosa cells that separate the antrum and the oocyte form the cumulus-oocyte-complex (cumulus oophorus)
Cumulus cells degenerate leaving the corona radiata
what is ovulated
Primary oocyte becomes secondary oocyte and you can see a polar body
Follicle ruptures and fluid, oocyte and cumulus are released and coaxed into the Fallopian tube
Follicle becomes the corpus luteum