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The Endowment for Human Development
The Endowment for Human Development
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Hiccups & Startle Response


7 weeks, 2 days

From The Biology of Prenatal Development.Buy Now

Script: Hiccups have been observed by 7 weeks.

Leg movements can now be seen, along with a startle response.

All ages referenced to fertilization, not last menstrual period.
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The Maturing Heart
The Maturing Heart
The External Ear
The External Ear
Hiccups & Startle Response
Hiccups & Startle Response
Joining Hands
Joining Hands
Bone Formation
Bone Formation
Eyes and Eyelids
Eyes and Eyelids
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