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.
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||Michael Seth Rabin, MD - Medical Oncology|
|Last Revised||September 12, 2012|