Ключевые слова: alveolar, alveoli, alveolus, cell, chronic, cigarette, copd, destruction, disease, emphysema, eosin, hematoxylin, histology, histopathology, lung, magnification, medical, medicine, micro, micrograph, microphotograph, microscope, microscopic, microscopy, morphological, morphology, nontumor, obstructive, pathology, photomicrograph, pulmonary, respiratory, septa, smoking, stain, tissue,