Prenatal Development & Vulnerability to teratogens Flashcards
1
Q
Zygote
A
-fertilized egg
-enters a 2 week period of rapid cell division
-develops into an embryo
1
Q
Embryo
A
the developing human organism from 2 weeks through 2nd month
2
Q
fetus
A
the developing human organism from 9 weeks after conception to birth
3
Q
Teratogens
A
any agent that causes birth defect
4
Q
Week 1-2
A
usually not susceptible to teratogens; prenatal death
5
Q
week 3-7
A
usual site of action of teratogens; major structural abnormalities
6
Q
week 8-38
A
physiological defects and minor structural abnormalities
