Why does trachea not collapse when there is no air in it?
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Trachea is supported by c-shaped rings of cartilage which hold them in place when there is less air inside it. So, the walls of trachea do not collapse even when there is a little air. The cartilage provides support to the trachea which does not collapse even when there is less air in it.
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•Trachea is supported by C-Shaped rings of cartilage which Hold them in place when there is less air inside it. So, the walls of the trachea doesn't collapse when it has sufficient air.
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