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1: Early Human Embryonic Development (IC) by Mind Map: 1: Early Human Embryonic Development (IC)
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1: Early Human Embryonic Development (IC)

Organogenetic period

4-8 weeks

Third week

Gastrulation - primitive streak

Forms the 3 layers: - ectoderm - mesoderm - endoderm

Notchcord

Neurulation

Somites

Intraembrynic coelom

Early development of CVS

Development of chorionic villi

Third week

Second week

Formation of exocoelomic and amniotic cavities

Embryonic disk

Primary umbilical vesicle (yolk sac)

Complete implantation by 10th day

Uteroplacdntal circulation

Extraembrionic coelom

Chorionic sac

First week

Fertilization

1 day from ovulation

Morula

Blastocyst

Implantation