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The Endowment for Human Development
The Endowment for Human Development
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Yawning

#217, Slide 72 of 74

7 months, 2 weeks

From The Biology of Prenatal Development.Buy Now

Label Key:

1. nose
2. mouth wide open
3. forehead
4. chin
5. left eye
6. cheek
7. left hand
8. left forearm
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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