Question

Why the wall of trachea does not collapse when we exhale forcefully ? (carry 1 marks)

Answer 1

The trachea has a series of C-shaped cartilage rings that run the length of it, down to where it bifurcates into the bronchi. ... The structure allows the contents of the esophagus to pass behind the trachea and prevents it from collapsing as a result of pressure changes.

Answer 2

hey mate here is ur ans

for one mark ans

the trachea has circular almost C shaped cartilaginous rings which keeps the trachea permanently distended even when the pressure in lungs falls by exhaling forcefully

hope it helps u