Embryology:

1
Embryology The science of the development of the
conceptus during the embryonic stage

• In humans, this is weeks 2 to 8
• In mice, this is days 3 to 12
• In chicks, this hours 12 to 72

2
egg
fertilization
cleavage
Implantation
zygote

blastocyst
trilaminar embryo
sperm
gastrulation
organogensis
Mammalian Life Cycle
fetus
adult
growth
puberty
birth
growth
adolescent
infant
3
Teratology
4
Anatomy
5
Developmental Biology
?
6
Cancer Biology
7
Organic Evolution
8
Environmental Toxicology