Why does trachea not collapse in the absence of air?
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Hii..
C shaped cartilagenous rings present around trachea prevents them from collapsing when there is no air present in it..
C shaped cartilagenous rings present around trachea prevents them from collapsing when there is no air present in it..
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the protects trachea and provides support so it will not collapses during breathing hardly and breathing softly
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