Physiology Flashcards
1
Q
what forms the maternal part of the placenta
A
decidua
2
Q
by what week does the placenta function
A
5th
3
Q
what do syncytiotrophoblasts do
A
invade decidua and break down capillaries to form cavities filled with maternal blood
4
Q
higher or lower Hb content n foetal blood than adults
A
higher (50%)
5
Q
CO increased or decreased in pregnancy
A
increased
decreases in the last 8 weeks
6
Q
in which trimester does BP drop
A
second
7
Q
change in partial pressure of oxygen
A
no change
8
Q
why is there hyperparathyroidism
A
increased calcium demand
9
Q
what maintains the corpus luteum
A
HcG
10
Q
what causes reduced insulin sensitivity in the foetus
A
human chorionic somatomammotropin
11
Q
does tidal vol increase or decrease
A
increase
12
Q
plasma vol up or down?
A
up by 50%
