Within the respiratory system, air is first inhaled through the nose or mouth into the pharynx. From the pharynx, air is drawn through the larynx and trachea to make its way to the lungs.
Review Date: 11/4/2012 Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, and Stephanie Slon.