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Leya [2.2K]
3 years ago
15

Atelectasis is caused by occupational exposure to coal dust. a. true b. false

Biology
1 answer:
Irina18 [472]3 years ago
6 0
The statement is true. Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. It may effect part or all of a lung. An airway blockage also can cause Atelectasis. A blockage may be due to a foreign object, a mucus plug, lung cancer, or a poorly placed breathing tube from a ventilator. When a blockage occurs, the air that's already in the air sacs is absorbed into the bloodstream. 
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Answer:

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Explanation:

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