Respiratory System

Match it! Select the correct answer from the pull down...Good luck!

List the respiratory structures in order from largest to smallest:

Epiglottis is a flap that covers the ____________ when you swallow food. This prevents choking.

Where is the carbon dioxide that you breathe out produced?

Your lungs have air sacs that come in contact with your blood stream to send oxygen to your cells. These air sacs are called

When carbonic acid (a byproduct of carbon dioxide) builds up in your blood, your brain tells your body to breathe

The respiratory system works mostly closely with which system?

Which part of the respiratory system warms the air?

Oxygen crosses into the __________ of the bloodstream at the ______________ of the lungs.