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Geology notes september 15

Geology notes september 15 - G eology-Silicotic nodules are...

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Geology -Silicotic nodules are collagen rich areas caused by mineral damage to tissue *The show up as bright (dense) areas on chest x-rays. Ex. Black lung/Brown lung -Asbestos is a broad commercial term for a group of naturally occurring hydrated silicate minerals that crystallize in a fibrous habit * Asbestos was widely used in construction, piping, brake linings, etc.. -Serpentine asbestos was the most widely used type in the US, less dangerous than amphibole asbestos. Chrysotile (white asbestos) -Amphibole asbestos was used mostly for filters, thought to be more dangerous than serpentine asbestos * Crocidolite (blue asbestos) - very dangerous, causes mesotheiloma * Asbestos and Smoking causes increase of lung cancer to go up a ton *Asbestosis- collagen deposition caused by chronic inflammation reduces the flexibility of lung tissue, risk enhanced by smoking
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*Lung Cancer- caused by smoking and exposure to asbestos *Mesotheliioma-malignant tumor growth in lining of chest
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