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Ready for Birth


 

9 months

From The Biology of Prenatal Development.Buy Now

Script: The fetus initiates labor by releasing large amounts of a hormone called estrogen and thus begins the transition from fetus to newborn.

Labor is marked by powerful contractions of the uterus, resulting in childbirth.

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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Ready for Birth
Ready for Birth
( 9 months)
Cell Division
Cell Division
( 48 hours)
Amnion and Germ Layers
Amnion and Germ Layers
( 7 days)
The Folding of the Embryo
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( 3 weeks)
The Heart in Action
The Heart in Action
( 4 weeks, 4 days)
Hand Plates and Cartilage
Hand Plates and Cartilage
( 5 weeks, 6 days)
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