Placentation Flashcards
a
1
Q
Placentation
A
Formation of placenta occurs from 11 days to 12 weeks
2
Q
Functions of placenta
A
Transfer Gases
Transport Nutrients
Excretion of waste
Hormone production (oestrogen and progesterone)
3
Q
Ductus venosus
A
Liver bypass
Mother’s liver filters foetal blood before entering the umbilical artery
4
Q
Ductus Arteriosus
A
Lung Bypass
Allows blood to travel from right ventricle to aorta bypass lungs
Blood will not flow through lungs as they are deflated
5
Q
Foramen ovale
A
Holes between left and right atria
close at birth to allow blood to flow through pulmonary artery
6
Q
Umbilical Cord
A
Blood is supplied through umbilical cord
