Amniotic fluid not only protects the fetus from injury and temperature changes, it also is circulated by the fetus every 3 hours.
Review Date 8/7/2019
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.