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The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
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The Liver and Heart


5 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Script: Note the massive liver filling the abdomen adjacent to the beating heart.

The permanent kidneys appear by 5 weeks.

All ages referenced to fertilization, not last menstrual period.
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Cerebral Hemispheres
Cerebral Hemispheres
The Yolk Sac
The Yolk Sac
The Liver and Heart
The Liver and Heart
Hand Plates and Cartilage
Hand Plates and Cartilage
Brainwaves
Brainwaves
Polygon-Shaped Hand Plates
Polygon-Shaped Hand Plates
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