OverviewThe lungs are located in the chest cavity and are responsible for respiration. The alveoli are small sir sacs where oxygen is exchanged in the lungs.
Update Date 5/5/2014
Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.