Development of Inner Cell Mass
Development of inner cell mass differentiated into;
1. Amnion layer of embryo cell
2. Umbilical cord
3. Foetus
After implantation, 2 cavity appear in inner cell mass.
1. Amniotic cavity/ amniotic sac contains amniotic fluid
Amnion membrane forming fluid filled cavity (amniotic sac that enclose the embryo).
2. Yolk sac
Before placenta form, yolk cell provide nutrition and gas exchange between mother and developing embryo.
