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The Endowment for Human Development
The Endowment for Human Development
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Close-up of the Right Knee

7 weeks, 3 days

From The Biology of Prenatal Development.Buy Now

Note:

This knee joint is currently flexed about 75 degrees from the fully straight position and is already well formed.

Label Key:

1. surface vessels
2. right knee, lateral surface
All ages referenced to fertilization, not last menstrual period.
The 7½-Week Face
The 7½-Week Face
The Right Hand
The Right Hand
Close-up of the Right Knee
Close-up of the Right Knee
Close-up, Umbilical Cord at 7½ Weeks
Close-up, Umbilical Cord at 7½ Weeks
Base of Umbilical Cord, 7½ Weeks
Base of Umbilical Cord, 7½ Weeks
7½-Week Embryo
7½-Week Embryo
When does health begin? Find out now.
Buy the Biology of Prenatal Development DVD