1. Michelle Napier

2. 1. Smoking and Respiratory Risks - Lung cancer- 23 times higher risk for males and 11 times higher risk for females - Chronic Bronchitis and Emphysema- 5 times higher risk - Heart Disease- 2 times higher risk - chemicals in tobacco are poisonous and destroy cells - high temperatures, smoke, and carbon monoxide can injure cells - secondhand smoke- inhaling smoke from others that are smoking, also unhealthy and can harm the respiratory system 2. Smoking and Respiratory Problems

3. 3. Causes of Respiratory Problems - Smoking - Polluted air - Coal dust - asbestos 4. Common Cold - caused by bacteria, viruses or other micro-organisms - usually affects upper respiratory system- from nose to pharynx - can cause irritation and swelling in larynx, trachea, and bronchi

4. 5. Influenza the “flu” - caused by a virus - can affect many body systems - virus multiplies in the cells of the alveoli and damages them 6. Pneumonia - infection in the alveoli - can be caused by bacteria, viruses, or other micro-organisms - can be treated with antibiotics

5. 7. Bronchitis - bronchial tubes are irritated and swell, and too much mucus is produced - bronchitis can be treated with antibiotics and clears up within a few weeks, if not it is called chronic bronchitis - people cough a lot to clear mucus from airway, but it damages cilia and bronchial tubes and scar tissue can form causing the respiratory system not to perform properly

6. 8. Emphysema - disease that causes alveoli in the lungs to enlarge - when cells in alveoli swell, they release an enzyme that causes walls of alveoli to break down - causes less oxygen in the bloodstream and shortness of breath - often develop heart problems because heart has to work harder to supply oxygen to body cells

7. 9. Lung Cancer - 3 rd leading cause of death in the U.S. - greatest cause of lung cancer is inhaling tar in cigarette smoke - carcinogens- substances that can cause uncontrolled growth of cells

8. 10. Asthma - lung disorder that can cause shortness of breath, wheezing, or coughing - asthma attack- bronchial tubes contract quickly, medicines in inhalers relax the tubes - often an allergic reaction to a foreign substance - attacks can be caused by cigarette smoke, plant pollen, certain foods, or stress