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PHYSIOLOGICAL REVIEWS
Volume 89, Issue 3, Pages 759-775Publisher
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/physrev.00019.2007
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Faffe DS, Zin WA. Lung Parenchymal Mechanics in Health and Disease. Physiol Rev 89: 759-775, 2009; doi:10.1152/physrev.00019.2007.-The 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.
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