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The Endowment for Human Development
The Endowment for Human Development
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Epidermis and Hair


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: در زمان 8 هفتگی اپی درم یا پوست بیرونی یک عضو چند لایه ای می شود، که بیشتر شفافیتش را از دست می دھد.

ابروها مانند مو که دور دهان ظاهر می گردد، رشد می کنند.

All ages referenced to fertilization, not last menstrual period.
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Spontaneous Movement
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Epidermis and Hair
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