Question

Why does trachea not collapse when there is no air in it?

Answer 1

Answer:

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. The cartilage provides support to the trachea which does not collapse even when there is less air in it.

Answer 2

Answer:

•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 the trachea doesn't collapse when it has sufficient air.