| A | B |
| Trachea | C rings of cartilage |
| Larynx | Voice Box |
| Covers trachea when you swallow | epiglottis |
| carries oxygen in blood | hemoglobin |
| Mineral needed for hemoglobin to function | iron |
| Smallest tubes in lungs | bronchioles |
| aveloi | palce when gas exchange occurs |
| process by which oxygen enters the blood from the lungs | diffusion |
| 3 lobes | right lung |
| 2 lobes | left lung |
| Separates thoracic and abdominal cavities | diaphragm |
| tubes leading into lungs from trachea | bronchial tubes |
| Most CO2 in blood is in what form | HCO3-; the bicarbonate ion |
| Hemoglobin is located in these cells | red blood cells |
| Pharynx | area in back of throat |
| URI | head cold |
| asphyxia | too much CO2 |
| carbonic acid | CO2 + H2O |
| Carbonic anhydrase | enzyme converts CO2 + H2O-->H2CO3 (and back) |
| viscera pleura | membrane that covers the lungs |