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

Image Gallery

Touching Thumbs

3 months

From The Biology of Prenatal Development.Buy Now

Note:

One reason the thumb is unique among the fingers is the presence of only one joint instead of two.

Label Key:

1. nail field
2. right thumb
3. vein
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
External Genitalia
External Genitalia
The Hands
The Hands
Touching Thumbs
Touching Thumbs
Three-Month Fetus
Three-Month Fetus
Fingertips of Right Hand
Fingertips of Right Hand
Roof of the Mouth
Roof of the Mouth


Add a Comment

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

Comment: