Geography, asked by saaanjeev, 11 months ago

When we breathe out, why does the air passage not collapse?

Answers

Answered by Anonymous

7

The air passage, i.e. trachea is supported by incomplete cartilaginous rings, which prevent its collapsing in the absence of air.

Answered by lovelysingh55

0

Answer:

Hope this will help you. ..@@

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