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

Slideshow: Clinical Highlights

Close-up of Heart and Liver

#81, Slide 10 of 58

5 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Note:

This rare shot reveals all four chambers of the heart. The short movie clip that accompanies this snapshot allows you to see all four chambers in operation simultaneously if you look carefully!

Label Key:

1. edge of brain
2. umbilical cord
3. four chambers of heart
4. location of diaphragm
5. liver
All ages referenced to fertilization, not last menstrual period.
Free resources and training for educators
Tell your story. Create your own pregnancy calendar.