Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Merck Manual Consumer Version website. Overview of the respiratory system. www.merckmanuals.com/home. Updated June 2019. Accessed January 31, 2021.