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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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Heart Chambers and Liver

4 weeks, 4 days

Heart Chambers and Liver [Click for next image]
From The Biology of Prenatal Development.Buy Now

Note:

Watch the movie to see some of the earliest and rarest footage ever obtained showing the separate chambers contract and relax during the cardiac cycle.

Label Key:

1. chest wall
2. uterine wall
3. abdominal wall
4. diaphragm location
5. liver
6. heart chambers
All ages referenced to fertilization, not last menstrual period.
Head and Heart
Head and Heart
The Head and Mouth
The Head and Mouth
Heart Chambers and Liver
Heart Chambers and Liver
Heart in Slow Motion
Heart in Slow Motion
Surrounded by the Amnion
Surrounded by the Amnion
The Early Brain and Face
The Early Brain and Face
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