respiratory tract

Medical Dictionary

respiratory tract n.
The air passages from the nose to the pulmonary alveoli, including the pharynx, larynx, trachea, and bronchi.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Cultural Dictionary

respiratory tract definition


The path that air follows as it is inhaled and directed into the lungs. The respiratory tract includes the nose and nasal passages, the throat and trachea, and the bronchial tubes.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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