What day is the blastocyst mostly implanted into the wall of the uterus?
Day 11
What is the name of the disk that operates the two parts of the blastocyst?
Bilaminar embryonic disk
What structure is ventral to the bilaminar embryonic disk?
Hypoblast
What is the role of the yolk sac?
Contains vitelline fluid which nourishes the embryo
What is the role of the epiblast?
Become the three germ layers
What cells form the first extraembryonic mesoderm?
Epiblast cells