| A | B |
|---|
| respiration | how the body gets oxygen and gets rid of carbon dioxide |
| diaphragm | separates chest cavity from lungs |
| oxygen | more in aveoli than in blood |
| oxygen is carried by | hemoglobin |
| gas exchange occurs by... | diffusion |
| 2 phases of breathing | inhalation/exhalation |
| bronchi | tubes from the trachea |
| alveoli | tiny air sacs in the lungs |
| larynx | muscle between the pharynx and trachea |
| lungs | spongelike organs where gas exchange takes place |
| pharynx | where nose passages and mouth come together |
| trachea | main passageway to the lungs |
| epiglottis | flap over the top of the larynx |
| cellular respiration | cells get energy from glucose |
| mucus | moistens, warms and filters air of dust and germs |
