what is a breathing tube
Then, a flexible plastic tube is placed into your trachea, or windpipe, through your mouth or nose to help you breathe. The trachea, also known as the windpipe, is a tube that carries air to your lungs. Itâs about 4 inches long and 1 inch wide. It begins just under your larynx, or voice box, and extends down behind the breastbone, or sternum. Your trachea then divides into two smaller tubes called bronchi.