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Ray Of Light [21]
3 years ago
5

The air passages are lined with

Health
1 answer:
sveta [45]3 years ago
5 0

The air flows from the nostrils to the nasal passages. The nasal passages are lined with tiny hairlike structures and a sticky substance called mucus. These structures and the mucus filter dust and dirt from the air. In addition, cold air is warmed and moistened as it moves through the nasal passages.

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