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The Endowment for Human Development
The Endowment for Human Development
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4 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Script: 這時皮膚透明, 因為它只有 一個細胞的厚度。

隨著皮膚變厚, 這種透明性失去, 這意味著我們還有 一個月的時間 可以觀看內部器官發育。

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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