| A | B |
|---|
| Respiration | The process where the cells turn oxygen and glucose into carbon dioxide, water and energy. |
| Cilia | Tiny hair-like extensions found in the respiratory system. |
| Pharynx | Passageway shared by both air and food; the throat. |
| Trachea | Passageway for air; the windpipe. |
| Bronchi | Passages that direct air into the lungs. |
| Lung | To main organs in the chest cavity where air enters and carbon dioxide leaves. |
| Alveoli | Tiny sacs where gas exchange occurs; final destination for air. |
| Diaphragm | A large, dome-shaped muscle at the base of the lungs which helps you breathe. |
| Larynx | The voice box. |
| Tar | Dark, sticky substance produced when tobacco burns. |
| Carbon Monoxide | Colorless, odorless gas that is deadly if inhaled in large doses. |
| Nicotine | Addictive drug that speeds up the nervous system and heart. |
| Addiction | A physical dependence on a substance. |
| Bronchitis | An irritation of the breathing passages. |
| Emphysema | A disease that destroys lung tissue and causes difficulty breathing. |
| Lung Cancer | The growth of tumors in the lungs that take up air space. |
