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The Endowment for Human Development
The Endowment for Human Development
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The Mouth and Lips

4 months, 1 week

From The Biology of Prenatal Development.Buy Now

Label Key:

1. nostrils
2. vermillion border
3. philtrum
4. corner of mouth
5. upper lip
6. open mouth
7. lower lip
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
Still Hiding
Still Hiding
The Right Hand
The Right Hand
The Mouth and Lips
The Mouth and Lips
The Right Big Toe
The Right Big Toe
The Feet
The Feet
The Nose
The Nose
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