Implantation Flashcards
1
Q
Day 8
A
Fully implanted into uterine wall
2
Q
Trophoblast becomes
A
STB and Cytotrophoblast
3
Q
The bilaminar disc is formed of
A
Hyboblast and epiblast
4
Q
Day 9
A
Forming maternal blood supply to placenta via intervillous space
5
Q
STB
A
Outer layer
Invades endometrial lining
Secretes HCG
6
Q
Extraembryonic structures made by
A
Day 12
7
Q
Extraembryonic structures
A
Amniotic cavity
Primary umbilical vesicle
8
Q
Lacunar stage
A
Day 9
Lacunae form in STB
9
Q
STB secrete enzymes that break down what
A
Maternal blood vessels
10
Q
Extraembryonic mesoderm forms between
A
Cytotrophblast and embryo blast
11
Q
Primary villi
A
Cellular columns from cytotrophblast
12
Q
Extraembryonic mesoderm splits to form
A
Extraembryonic coelum
13
Q
Extraembryonic coelum
A
Outer is somatic
Inner is splanchnic
Connecting stalk
