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The Endowment for Human Development
The Endowment for Human Development
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Slideshow: The Developing Brain

The Body Plan Emerges

#37, Slide 5 of 21

4 weeks

From The Biology of Prenatal Development.Buy Now

Label Key:

1. midbrain
2. forebrain
3. umbilical cord
4. hindbrain
5. neck
6. heart
7. left upper limb bud
All ages referenced to fertilization, not last menstrual period.
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