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The Endowment for Human Development
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End of Embryonic Period


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: Den åttonde veckan innebär slutet på den embryonala perioden.

Under den här tiden har det mänskliga embryot vuxit från en enda cell till nästan 1 miljard celler som bildar över 4000 olika anatomiska strukturer.

Embryot har nu mer än 90 % av de delar som vuxna personer har.

All ages referenced to fertilization, not last menstrual period.
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End of Embryonic Period
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Buy the Biology of Prenatal Development DVD
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