black lung disease
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Title: black lung disease

Essay Details:

Subject: Science
Author: Leon P
Date: November 3, 2014
Level: University
Grade: A
Length: 2 / 467

Essay text:

Some call it miner's asthma, silicosis, pneumonoultramicroscopicsilicovolcanoconiosis, coal workers' pneumoconiosis, or black lung. However, they are all dust diseases with the same symptoms. Only the smallest particles of the coal dust make it past the nose, mouth, and throat into the alveoli found deep in the lungs. The alveoli, or air sacs, are responsible for exchanging gases with the blood, and are located at the end of each bronchiole. Microphages, a type of blood cell, gather foreign particles and carry them to where they can either be swallowed or coughed out. If too much dust is inhaled over a long period of time, some dust-laden microphages and particles collect permanently in the lungs causing black lung disease...

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