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Smoking

Smoking. What’s in a cigarette . Nicotine: The addictive drug in cigarettes Stimulant: Is a drug that increases the action of the central nervous system Tar: Is a thick, sticky, dark fluid produced when tobacco burns. This tar consists of many cancer causing substances known as carcinogens.

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Smoking

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  1. Smoking

  2. What’s in a cigarette • Nicotine: The addictive drug in cigarettes • Stimulant: Is a drug that increases the action of the central nervous system • Tar: Is a thick, sticky, dark fluid produced when tobacco burns. This tar consists of many cancer causing substances known as carcinogens

  3. What’s in a cigarette • Carbon Monoxide: Is a colorless, odorless, poisonous gas in cigarette smoke that passes through the lungs and into the blood. • The gas unites with the hemoglobin and prevents it from caring oxygen.

  4. Statistics from the American Lung Association • Cigarette smoke contains over 4,800 chemicals, 69 of which are known to cause cancer. • About 8.6 million people in the U.S. have at least one serious illness caused by smoking. • Secondhand smoke involuntarily inhaled by nonsmokers is responsible for approximately 3,000 lung cancer deaths annually. • In 2004, 22% of high school students were current smokers.

  5. Smoking • Effects on the lungs

  6. How the circulatory system works

  7. The Healthy Lung • Anatomy & Physiology of the lungs.

  8. Chronic Bronchitis • Chronic bronchitis: is the inflammation and eventual scarring of the lining of the bronchial tubes. As the cilia become useless, tar from cigarette smoke builds up, which results in coughing and excessive mucus secretion.

  9. Pulmonary Emphysema • In emphysema, the fine dividing walls between the tiny air sacs break. The sacs balloon out to become large pockets of air with hard inflexible walls.

  10. Lung Cancer • Cancer is an area of uncontrolled cell growth that invades the surrounding tissue and destroys it. This is due to the build up of tar in the lungs.

  11. Chronic Bronchitis & Pulmonary Emphysema

  12. Smoking and the Circulatory System • Constricts blood vessels • Plaque builds up in arteries • Makes heart work harder • Increase chance of heart disease • Increase chance of stroke • Increase blood pressure

  13. Other effects of smoking • Shuts down circulation in small vessels causing cold hands and feet. • Wrinkling of skin, especially the face • Interferers with immune response making colds more likely • Yellow teeth and tongue • Odor

  14. Other effects of smoking • Makes it likely that men will produce abnormal sperm • Causes women to become infertile • Smoking & Pregnancy

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