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The Endowment for Human Development
The Endowment for Human Development
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The Coiled Umbilical Cord

9 weeks

From The Biology of Prenatal Development.Buy Now

Note:

If you watch the movie carefully, you can see the umbilical cord pulsating with each beat of the fetal heart.

Label Key:

1. umbilical vein
2. umbilical arteries
All ages referenced to fertilization, not last menstrual period.
Comparing Lung Development
Comparing Lung Development
The 9-Week Fetus in Motion
The 9-Week Fetus in Motion
The Coiled Umbilical Cord
The Coiled Umbilical Cord
The Hands and Umbilical Cord
The Hands and Umbilical Cord
Fingers Moving Side to Side
Fingers Moving Side to Side
The Face at 9 Weeks
The Face at 9 Weeks
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