Formation of the Embryo Flashcards
1
Q
What does the inner cell mass of the blastocyst form?
A
- embryo
- amnion
- yolk sac (which forms part of umbilical cord)
2
Q
What is the amnion?
A
- a membrane that becomes fluid-filled
3
Q
What does the trophoblast later become called?
A
- the chorion
4
Q
What happens to the trophoblast after implantation?
A
- develops villi
- that grow into the endometrium to form the placenta
