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
ByHealthwise Staff Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine Specialist Medical ReviewerR. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care Medicine, Medical Toxicology
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