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Respiratory System


Picture of the respiratory system

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.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerW. David Colby IV, MSc, MD, FRCPC - Infectious Disease
Last RevisedJune 13, 2011

eMedicineHealth Medical Reference from Healthwise

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