Pregancy And Birth Flashcards
After fertilisation and implantation what does the ball of cells start to do
They start to specialise
What do the specialise cells start to show
Features of life
At what stage can we call it a foetus
When we can see human like features
What is the name of the thin sheet that surrounds the foetus and exapands as it grows
Amniotic sac
What is the purpose of the amniotic fluid
To cushion the foetus
What keeps the foetus alive during pregnancy
The placenta
What does the placenta provide for the foetus
Nutrients and oxygen
Where does the placenta get the nutrients and oxygen from
The mothers blood
How does the nutrients and oxygen go from the placenta to the foetus
By the umbilical cord
What does the placenta extract from the foetus
Carbion dioxide and other wastse
Does the mother and foetus blood every mix
No
Why is it important that the mothers and foetus blood never mix
As the mother may not have the same blood type as the foetus
Why is it important to not drink or smoke during pregnancy
As any harmful substance that the mother takes in can pass through to the foetus and cause problems
Ion early stages what is the baby referred to as
Embryo
After how many weeks can the embryo be called a foetus
8
