Blastulation Flashcards
1
Q
Key processes in Blastulation
A
- Cleavage -> formation of Blastocoel -> Cell differentiation -> Implantation
2
Q
How many blastomere cells must developed to be called a MORULA?
A
16-32 blastomeres
3
Q
Mechanisms of Implantation
A
- Zone pellucida degenerates -> Blastocysts increase in size -> Adhesion to endometrium ->Trophoblast will differentiate into 2 layers -> Blastocysts is supercially embedded in endometrium
4
Q
appear in synctiotrophoblast which communicate in forming lacunar network
A
Blood-filled lacunae
5
Q
Where does Blood-filled lacunae appear?
A
Syncytiotrophoblast
6
Q
Syncytiotrophoblast communicate in forming?
A
Lacunar network
7
Q
at what does does Blood-filled lacunae processes appear?
A
By 10th or 11th day
8
Q
WHat is established in 11th or 12th day?
A
Uteroplacental circulation
9
Q
2 methods that can detect implantation?
A
- Ultrasonography
- hCG (Human chorionic gonadotrophin)
10
Q
is an immunosuppresent protein
- secreted by trophoblast cells
A
Early Pregnancy Factors (EPF)
11
Q
A
