The aged lung.
D000368:Aged; D000375:Aging; D001980:Bronchi / Q000473:pathology; D003560:Cysts / Q000473:pathology; D006801:Humans; D008171:Lung Diseases / Q000473:pathology; D008297:Male; D008961:Models, Structural; D011650:Pulmonary Alveoli / Q000098:blood supply / Q000473:pathology; D011652:Pulmonary Circulation; D011656:Pulmonary Emphysema / Q000473:pathology*