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.
June 13, 2011
E. Gregory Thompson, MD - Internal Medicine & W. David Colby IV, MSc, MD, FRCPC - Infectious Disease
How this information was developed to help you make better health decisions.
To learn more visit Healthwise.org
© 1995-2013 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.