No.....A person cannot live without a trachea.
The larynx is the voicebox. You can live without them. People that develop throat cancer sometimes need to get a hole drilled there so that they can talk. This procedure is a tracheostomy. Without a larynx, you can live but cannot talk without aid.
If you talk or laugh while eating since your talking or laughing your trachea opens so that you can make sound and if you swallow something it will go down your trachea and you will choke.
The trachea is the windpipe. A healthy trachea is able to carry air in and out of the lungs easily and without pain.
They change the shape of their trachea and push wind through it to make noise. :)
Because if it collapses you will not be able to breathe....and will die.
So they don't collapse when the pressure drops.
The singular for trachea is "trachea". The plural is "tracheae".
How do you talk without a Mouth...
No trachea is not the lung.