URL of this page: //medlineplus.gov/ency/article/002290.htm


The words "respiratory" and "respiration" refer to the lungs and breathing.

Alternative Names



Dezube R. Overview of the respiratory system. Merck Manual Consumer Version website. www.merckmanuals.com/home/lung-and-airway-disorders/biology-of-the-lungs-and-airways/overview-of-the-respiratory-system. Updated September 2022. Accessed January 17, 2023.

Review Date 10/20/2022

Updated by: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.