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

Breathing Movements


7 months, 3 weeks

From The Biology of Prenatal Development.Buy Now

Script: By 30 weeks, breathing movements are more common and occur 30 to 40% of the time in an average fetus.

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
See Snapshots   |   Log in to create a playlist
4D Ultrasound
4D Ultrasound
4D Ultrasound
4D Ultrasound
Breathing Movements
Breathing Movements
4D Ultrasound
4D Ultrasound
4D Ultrasound
4D Ultrasound
Alveoli Formation
Alveoli Formation
Tell your story. Create your own pregnancy calendar.
Buy the Biology of Prenatal Development DVD