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The Endowment for Human Development
The Endowment for Human Development
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Slideshow: Clinical Highlights

The Umbilical Cord at 7½ Weeks

#122, Slide 53 of 58

7 weeks, 4 days

From The Biology of Prenatal Development.Buy Now

Note:

The circumference of the umbilical cord's base is much larger than the cord itself. Do you know why?

Label Key:

1. vitelline vessels adjacent to the umbilical cord
2. abdominal wall
3. loops of bowel within base of umbilical cord
4. umbilical cord
5. fingers
6. right hand
7. right wrist
All ages referenced to fertilization, not last menstrual period.
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