| A | B |
|---|
| diaphragm | strong chest muscle that helps you breathe |
| larynx | voice box |
| trachea | windpipe |
| bronchioles | small tubes which carry air to microscopic air sacs called alveoli |
| pharynx | passageway for food and air |
| epiglottis | small flap at the back of the throat which prevents food from entering the trachea |
| mouth | brings in air and food |
| nasal cavity | brings air into the body |
| brochus-bronchi (plural) | tube that connects trachea to the lung |
| alveolus-alveoli (plural) | tiny sac at the end of each bronchiole that holds air |
| lungs | organ where gas exchange occurs |
| respiration | breathing |
| cilia | tiny hairs on the inside of the windpipe, that keep mucus and dirt out of the lungs |
