Question

why does the sir passage not collape when air passes through it into the lungs​

Answer 1

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The trachea or the windpipe connects the pharynx and larynx to our lungs. This allows air to paas in and out of the lungs. As the trachea is made of cartilaginous rings which are of C shape, it prevents the air passage not to collapse when we breathe out air.

Answer 2

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