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Amniotic Fluid


4 weeks, 4 days

From The Biology of Prenatal Development.Buy Now

Script: By 4 weeks the clear amnion surrounds the embryo in a fluid-filled sac. This sterile liquid, called amniotic fluid, provides the embryo with protection from injury.

All ages referenced to fertilization, not last menstrual period.
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Sections of the Brain
Sections of the Brain
Body Cavity Formation
Body Cavity Formation
Amniotic Fluid
Amniotic Fluid
The Heart in Action
The Heart in Action
The Limbs Bud
The Limbs Bud
Transparent Skin
Transparent Skin
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2 Comments


Shelly Golden Gettings
February 5, 2013 at 3:50 pm
Shelly Golden Gettings
According to the website, all ages are referenced to fertilization not last menstrual period.
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atucny
May 8, 2012 at 10:25 am
atucny
I can not figure out if these videos are based on gestational age or actual age. Can anyone help me on this?
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