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The Endowment for Human Development
The Endowment for Human Development
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Sucking and Swallowing


9 weeks, 3 days

From The Biology of Prenatal Development.Buy Now

Script: By 9 weeks, thumb sucking begins and the fetus can swallow amniotic fluid.

All ages referenced to fertilization, not last menstrual period.
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Uterus is Identifiable
Uterus is Identifiable
Vocal Cords
Vocal Cords
Sucking and Swallowing
Sucking and Swallowing
4D Ultrasound
4D Ultrasound
A Burst of Growth
A Burst of Growth
4D Ultrasound
4D Ultrasound
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