The upper respiratory tract (upper airway) consists of the nose, mouth, sinuses, and throat.
The lower respiratory tract consists of the trachea, bronchial tubes, and the structures inside the lungs.
Current as of: June 9, 2019
Author: Healthwise Staff Medical Review: E. Gregory Thompson, MD - Internal Medicine Anne C. Poinier, MD - Internal Medicine Adam Husney, MD - Family Medicine W. David Colby IV, MSc, MD, FRCPC - Infectious Disease
Medical Review:E. Gregory Thompson, MD - Internal Medicine & Anne C. Poinier, MD - Internal Medicine & Adam Husney, MD - Family Medicine & W. David Colby IV, MSc, MD, FRCPC - Infectious Disease