Embryology: First 55 Days Summary Timeline Flashcards
0
Q
Day 6-7
A
Implantation of blastocyst into uterine wall
1
Q
Day 1-2
A
Fertilization
2
Q
Day 16-20
A
Appearance of celom and blood islands
3
Q
Day 20
A
Endocardial tubes present and begin fusing
4
Q
Day 22
A
Main heart tube begins to beat
5
Q
Day 23-28
A
Heart folding
6
Q
Day 27-37
A
Atrial and ventricular septation and development
7
Q
Day 29
A
Outflow tract septation
8
Q
Day 55
A
Complete