Why do the walls of trachea do not shrink even though there is less oxygen
in it?
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3
Explanation:
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.
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αиѕωєя❤:-
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.
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