| A | B |
|---|
| Breathing | To inhale and exhale during respiration |
| lung | either of two spongy sac like respiratory organs |
| carbon dioxide | a waste gas we exhale |
| inhale | to breathe in |
| exhale | to breathe out |
| alveoli | tiny air sacks in the lungs |
| brochi | either of two main branches of the trachea |
| trachea | windpipe or tube in your throat which connects the mouth and nose to the lungs |
| yawn | a deep long breathe that adds extra oxygen to the respiratory |
| diaphragm | muscles right under your lungs |
| respiratory system | the breathing system of the body |
