Chapter 5- AFTER FERTILISATION Flashcards
1
Q
what happens after fertilisation?
A
the zygote divides and multiplies to form a ball of cells called an embryo
2
Q
what happens in the oviduct?
A
the oviduct has little hair called cilia which push the embryo along towards the uterus
3
Q
what happens in the uterus?
A
the embryo sinks into the blood lining. this is called IMPLANTATION.
4
Q
where does the embryo then develop?
A
inside a bag of fluid called the amnion, surrounded and protected by amniotic fluid which protect it from shocks.
5
Q
what does the placenta do?
A
substances are exchanged between the mother’s and the fetus’ blood.
nutrients + oxygen —-> from mother to baby
carbon dioxide —–> from baby to mother
6
Q
how is the fetus connected to the placenta?
A
it is connected to the placenta by the umbilical cord.
