Skip Navigation
The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
Donate Now Get Free Videos

Movie Theater

Amniotic Fluid


4 weeks, 4 days

From The Biology of Prenatal Development.Buy Now

Script: Do 4 týždňov obklopí embryo číry amnión a vytvorí tekutinou naplnený vak. Táto sterilná tekutina, zvaná plodová voda, poskytuje embryu ochranu pred poškodením.

All ages referenced to fertilization, not last menstrual period.
See Snapshots   |   Log in to create a playlist
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
Tell your story. Create your own pregnancy calendar.
Buy the Biology of Prenatal Development DVD