Respiratory systemFrom our partner site on asthma, MyAsthmaCentral.com. Air is breathed in through the nasal passageways, travels through the trachea and bronchi to the lungs.
Review Date: 5/6/2004 Reviewed By: Allen J. Blaivas, D.O., Division of Pulmonary, Critical Care, and Sleep Medicine, University Hospital, Newark, NJ. Review provided by VeriMed Healthcare Network.
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