- Day 4/ 5 after the morula enters the uterus it takes up fluid, which gathers into the central cavity. -now is called the blastocyst
Zygote- Fertilized egg. -The result of the union of an egg cell and sperm cell.
-After fertilization occurs, the zygote begins to divide rapidly and form smaller segments called blastomeres. -The daughter cells of the zygote
: the layer of cells surrounding the cavity, responsible for implanting the bastocyst in the uterine - it releases strong digestive enzymes, so it can “eat its way in” for nourishment before fetal membranes can fully supply it – will help form the placenta