WHY TRACHEA DONOT COLLAPHS WHEN THEIR IS NO AIR?

Asked by avinash_jha | 21st Aug, 2010, 12:00: AM

Expert Answer:

Rings of cartilage are presentin the throat that ensures that air passage donot collapse when there is no air.

Answered by  | 21st Aug, 2010, 03:23: PM

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