3 Flashcards
1
Q
Germinal period
A
1st 2 weeks after conception
2
Q
Blastocyst
A
Inner layer of cells
Develop during germinal period
Embryo
3
Q
Trophoblast
A
Outer layer
Provides nutrition
4
Q
Embryonic period
A
2-8 weeks organs form
Organogenesis
5
Q
Fetal period
A
2-9 months
Viability
Brain development
6
Q
Teratogen
A
An agent that causes birth defects