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

Right- and Left-Handedness


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: Dentro de 8 semanas, 75% dos embriões têm dominância da mão direita. O restante divide-se igualmente entre dominância da esquerda e falta de preferência. Esta é a primeira evidência dessas preferências.

All ages referenced to fertilization, not last menstrual period.
See Snapshots   |   Log in to create a playlist
Ovaries Identifiable
Ovaries Identifiable
The Highly Complex Brain
The Highly Complex Brain
Right- and Left-Handedness
Right- and Left-Handedness
Rolling Over
Rolling Over
Spontaneous Movement
Spontaneous Movement
Reflexive Movement
Reflexive Movement
Help give babies a healthy start and a healthy future. Donate now.
Free resources and training for educators


Add a Comment

Your Name: Log In 3rd-party login: Facebook     Google     Yahoo

Comment: