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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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Hiding the Face

#436, Slide 61 of 74

4 months

From The Biology of Prenatal Development.Buy Now

Label Key:

1. scalp
2. right forearm
3. right lower leg
4. right thigh
5. male external genitalia
6. abdomen
7. left thigh
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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