Why the wall of trachea does not collapse even when there is less air in it?
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It's is so because the trachea is made up of the cartilage, which is quite flexible than bones. This allows a narrow passage for the air, hence the air doesn't collapse.
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Answer:
Explanation:
trachea walls do not collapse when there is less air in it because it is suppoerted by rings of cartillage.
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