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The Endowment for Human Development
The Endowment for Human Development
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The Heart and Brain

6 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Label Key:

1. liver
2. location of diaphragm
3. marginal vein of left hand
4. notching
5. right hand
6. brain
7. forehead
8. nasal prominence
9. heart
10. left eye
11. digital rays
12. left hand
All ages referenced to fertilization, not last menstrual period.
The Liver and Beating Heart
The Liver and Beating Heart
Right Hand and Nipple
Right Hand and Nipple
The Heart and Brain
The Heart and Brain
Left Hand and Left Eye
Left Hand and Left Eye
Close-up, Seven-Week Heart
Close-up, Seven-Week Heart
The Four-Chambered Heart
The Four-Chambered Heart
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