What is considered the main trunk of the respiratory system?

Question

What is considered the main trunk of the respiratory system?

Since this is not my area of expertise, I searched Google under the key words "'respiratory system' main trunk" to get these possible sources:

http://en.wikipedia.org/wiki/Respiratory_system
http://www.answers.com/topic/respiratory-system

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.

Answer 1

The main trunk of the respiratory system is known as the trachea or windpipe. It is a tube-like structure made of cartilage rings that connects the larynx (voice box) to the bronchi, ensuring the flow of air to and from the lungs. The trachea is responsible for conducting inhaled air into the lungs and expelling exhaled air out of the body.