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The respiratory system includes the trachea (windpipe), two bronchi (one bronchus branching into each lung), the lungs, and the bronchioles (smaller airways in the lungs). The right lung has three lobes, and the left lung has two lobes.
Last Revised: April 5, 2013
Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine & R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care Medicine, Medical Toxicology
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