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The Endowment for Human Development
The Endowment for Human Development
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Slideshow: Umbilical Cord, Placenta & More

Umbilical Cord

#393, Slide 19 of 35

8 weeks

From The Biology of Prenatal Development.Buy Now

Label Key:

1. umbilical artery
2. umbilical vein
All ages referenced to fertilization, not last menstrual period.
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