Question

why the walls of trachea are supported by cartiginous ring? (answer it in 3 mark question)

Answer 1

The answer to your question is :-

Trachea is a tube which is used transmit air from lungs to out . It is also known as Windpipe .

It is supported by cartiginous ring to prevent trachea from collapsing .

Hope it helps you .

Have a nice day .

Answer 2

This is because a low pressure zone in the trachea whenever we inhale air from our lungs.
The high pressure zone present outside the trachea , pushes the tracheal wall.
So, The trachea is supported by the cartiginious rings to help in maintaining its shape and prevent it from collapsing.

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