08.1 Placenta Flashcards
1
Q
What are the 3 main aims of the placenta?
A
- Establish exchange
- Anchor placenta
- Establish maternal flow within placenta
2
Q
What happens if placental invasion is incomplete?
A
Placental insufficiency
Pre-eclampsia
3
Q
In terms of gross morphology what is on either side of the placenta?
A
Foetal side - umbillical cord
Maternal side - cotyledons
4
Q
What vessels are in the umbilical cord?
A
2x arteries - blood from foetus to placenta
1x vein - blood from placenta to foetus
5
Q
What does the placenta synthesise?
A
Glycogen
Cholesterol
Fatty acids
6
Q
What steroid hormones does the placenta produce and why?
A
Oestrogen
Progesterone
Maintains the pregnant state
7
Q
What is trophoblast disease?
A
Only trophoblast pregnancy - lots of hCG produced
8
Q
What immunity is given via the placenta?
A
IgG passive immunity
