| A | B |
|---|
| Respiratory system | breathe in oxygen and breathe out carbon dioxide and water. |
| Inflate | Fill with air. |
| Trachea | Carries air to our lungs. |
| Epiglottis | Flap of tissue that covers the windpipe when we eat and drink |
| Cough | When air is forced out of the lungs and through the throat; to get rid of something that does not belong, like dust |
| Burp | To let air out of the stomach through the mouth |
| lungs | 2 Main organs of the respiratory system. |
| Larynx | Voice box; where sound is produced |
| Pleura | The cover over our lungs |
| Pharynx | throat |
| Contract | When our muscle tightens |
| diaphragm | curved muscle at the bottom of our chest that helps us breath. |
| Bronchial tube | Tube in each lung that branches off from the trachea (windpipe). |
| Inhale (inhalation) | Breathe oxygen into our lungs. |
| Exhale | Breathe carbon dioxide out of our lungs. |
| Alveoli | Clusters of tiny balloons (like grapes) in the lungs; where gas exchange happens |
| Breathe | Bring air into and out of our body |
| Transfer | Move from one place to another. |
| Expand | Increase or get bigger. |
| Nasal cavity | The inside of the nose. |
