a: mucus ~
b: a fly paper strip
What:
"As well, the mucus is like a fly paper strip. Impurities in the air you draw into your nasal passages -- things like dust, pollens, and other debris -- stick to the mucus so they don't get into your lungs"
Useful?
Writer: Helen Branswell
LCC:
Where:
Date: Mar 12 2015 10:21 AM
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