Inside each of your lungs there are tubes called bronchi. These branch into even smaller tubes much like the branches of a tree. What are at the ends of these tubes?

It serves as a passageway for both air and food. It is also connects our nose and mouth.

What is responsible for picking up the oxygen in lungs and carrying it to all the body cells that need it?

The trachea is a part of the respiratory system. What can the trachea also be called and what is its function?

Which of the following are the parts of the respiratory system?

A pair of organs within the rib cage, consisting of air sacs with branching passages which air is drawn so that oxygen can pass to the blood and carbon dioxide can be removed.

It is the voice box that vibrates when we speak.

How many times does a person breathes a day?

It is responsible for trapping or catching dirt in your nose.

_________ is the opening of your nose where oxygen enters.

What have you learned from this topic?