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

Playlist: Heart in Action

Hand Plates and Cartilage

#027, Movie 1 of 9

7 weeks, 4 days

See Snapshots

Script:

often long before birth.

The developmental period before birth is increasingly understood as a time of preparation during which the developing human acquires the many structures, and practices the many skills, needed
From The Biology of Prenatal Development.Buy Now
    All ages referenced to fertilization, not last menstrual period.
Help give babies a healthy start and a healthy future. Donate now.
Buy the Biology of Prenatal Development DVD