The words "respiratory" and "respiration" refer to the lungs and breathing.
Merck Manual Consumer Version website. Overview of the respiratory system.
Last reviewed on: 10/10/2020
Reviewed by: 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.