| A | B |
| respiration | process of using Oxygen and releasing Carbon Dioxide and water |
| breathing | inhalation and exhalation |
| larynx | area of throat that contains vocal chords |
| respiratory system | group of organs that take in Oxygen and get rid of Carbon Dioxide |
| nose | main passage into and out of respiratory system |
| pharynx | throat |
| cellular respiration | use of Oxygen by cells to release energy stored in food |
| trachea | wind pipe |
| bronchus | connects trachea to lungs (branches) |
| bronchioles | smaller branches of bronchi |
| alveoli | tiny sacs at end of bronchioles |
| diaphragm | muscle involved in breathing |
| inhalation | caused by diaphragm contracting |
| exhalation | caused by diaphragm relaxing |
| water and Carbon Dioxide | waste products of cells |
| asthma | may be triggered by dust and pollen |
| SARS | respiratory disorder caused by a virus |