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The Endowment for Human Development
The Endowment for Human Development
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Bone Formation


7 weeks, 4 days

From The Biology of Prenatal Development.Buy Now

Script: Образуването на костите, или осификацията, започва първо от ключицата и от костите на горната и долна челюст.

All ages referenced to fertilization, not last menstrual period.
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Hiccups & Startle Response
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Bone Formation
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Fingers and Toes
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