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The Endowment for Human Development
The Endowment for Human Development
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Transparent Skin


4 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Script: The skin is transparent at this point because it is only one cell thick.

As the skin thickens, it will lose this transparency, which means that we will only be able to watch internal organs develop for about another month.

All ages referenced to fertilization, not last menstrual period.
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The Heart in Action
The Heart in Action
The Limbs Bud
The Limbs Bud
Transparent Skin
Transparent Skin
Cerebral Hemispheres
Cerebral Hemispheres
The Yolk Sac
The Yolk Sac
The Liver and Heart
The Liver and Heart
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