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The Endowment for Human Development
The Endowment for Human Development
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Fingertips

#431, Slide 242 of 312

3 months

From The Biology of Prenatal Development.Buy Now

Label Key:

1. pad of left middle finger
2. pad of left index finger
3. right palm
4. right wrist
5. interphalangeal joint
6. left thumb
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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