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Lung parenchymal mechanics in health and disease Faffe DS; Zin WAPhysiol Rev 2009[Jul]; 89 (3): 759-75The mechanical properties of lung tissue are important determinants of lung physiological functions. The connective tissue is composed mainly of cells and extracellular matrix, where collagen and elastic fibers are the main determinants of lung tissue mechanical properties. These fibers have essentially different elastic properties, form a continuous network along the lungs, and are responsible for passive expiration. In the last decade, many studies analyzed the relationship between tissue composition, microstructure, and macrophysiology, showing that the lung physiological behavior reflects both the mechanical properties of tissue individual components and its complex structural organization. Different lung pathologies such as acute respiratory distress syndrome, fibrosis, inflammation, and emphysema can affect the extracellular matrix. This review focuses on the mechanical properties of lung tissue and how the stress-bearing elements of lung parenchyma can influence its behavior.|Animals[MESH]|Collagen/physiology[MESH]|Elastic Tissue/physiology[MESH]|Extracellular Matrix/physiology[MESH]|Humans[MESH]|Lung Diseases/*physiopathology[MESH]|Lung/*physiology[MESH]|Proteoglycans/physiology[MESH]|Respiratory Mechanics/*physiology[MESH] |
