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The Endowment for Human Development
The Endowment for Human Development
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The Beating Heart

5 weeks, 6 days

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

Note:

The beating heart is busy pumping blood and fills much of the chest. However, early lungs are growing quietly and inconspicuously on both sides of the chest.

Label Key:

1. chest wall
2. brain
3. heart
4. liver
All ages referenced to fertilization, not last menstrual period.
Yolk Sac and Vitelline Vessels
Yolk Sac and Vitelline Vessels
Yolk Sac
Yolk Sac
The Beating Heart
The Beating Heart
Hand Plate and Vital Organs
Hand Plate and Vital Organs
Left Hand Plate and Wrist
Left Hand Plate and Wrist
Brain and Umbilical Cord
Brain and Umbilical Cord
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