REI Flashcards
1
Q
stage at 3 days after fertilization
A
embryo is at cleavage stage
2
Q
stage at 4 days after fertilization
A
morula
3
Q
stage at 5 days after fertilization
A
blastulation, and appears in the uterus but not implanted
4
Q
stage at 7 days after fertilization
A
blastocyst implants into uterine wall
5
Q
stage at 12 days after fertilization
A
embryo has embedded and begins interacting with maternal circulation
6
Q
steps of pregnancy implantation
A
apposition > adhesion > invasion