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The Endowment for Human Development
The Endowment for Human Development
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The Maturing Heart


6 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Script: Ang pusong may 4 na chamber ay halos kumpleto na. Karaniwan, ang puso ay tumitibok ngayon ng 167 beses kada minuto.

Ang elektrikal na aktibidad ng puso ay naitatala sa 7 1/2 na linggo nagpapakita ng along disenyo na katulad sa matanda.

All ages referenced to fertilization, not last menstrual period.
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Nipple Formation
Nipple Formation
Hand Movement
Hand Movement
The Maturing Heart
The Maturing Heart
The External Ear
The External Ear
Hiccups & Startle Response
Hiccups & Startle Response
Joining Hands
Joining Hands
Buy the Biology of Prenatal Development DVD
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