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The Endowment for Human Development
The Endowment for Human Development
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The Umbilical Cord at 7½ Weeks

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.
Fingertips and Abdomen
Fingertips and Abdomen
The Seven-Week Face
The Seven-Week Face
The Umbilical Cord at 7½ Weeks
The Umbilical Cord at 7½ Weeks
Right Eye, Profile View of Face
Right Eye, Profile View of Face
Close-up, Right Eye and Face
Close-up, Right Eye and Face
The Face and Hands
The Face and Hands
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