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The Endowment for Human Development
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The Embryonic Period


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: Au cours des 8 premières semaines après la fertilisation, l'être humain en développement est appelé un embryon, ce qui signifie "croissance à l'intérieur." Cette période, désignée, la période embryonnaire, se caractérise par la formation de la plupart des fonctions principales du corps.

All ages referenced to fertilization, not last menstrual period.
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Reflexive Movement
Reflexive Movement
Epidermis and Hair
Epidermis and Hair
The Embryonic Period
The Embryonic Period
End of Embryonic Period
End of Embryonic Period
Kidneys Produce Urine
Kidneys Produce Urine
Eyelid Fusion
Eyelid Fusion
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