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

Fetal Respiratory System

9 weeks

From The Biology of Prenatal Development.Buy Now

Label Key:

1. right lung
2. trachea
3. left lung
All ages referenced to fertilization, not last menstrual period.
The Open Left Hand
The Open Left Hand
The 9-Week Fetus via MRI
The 9-Week Fetus via MRI
Fetal Respiratory System
Fetal Respiratory System
Comparing Lung Development
Comparing Lung Development
The 9-Week Fetus in Motion
The 9-Week Fetus in Motion
The Coiled Umbilical Cord
The Coiled Umbilical Cord
Help give babies a healthy start and a healthy future. Donate now.
When does health begin? Find out now.