AT 160. Ch13 tobacco. FA06

AT 160. Ch13 tobacco. FA06 - Chapter 13 Tobacco Use Misuse...

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Chapter 13: Tobacco Use, Misuse, and Abuse Tobacco Use, Misuse, and Abuse
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Tobacco Smoked Chewed Directly affects the brain Primary ingredient-nicotine Contains 400 other compounds Smoked- gases, liquids, tar, carbon monoxide, formaldehyde, hydrogen cyanide, ammonia
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Nicotine Colorless, oily compound Poisonous in concentrated amounts With inhalation 90% of the nicotine in the smoke is absorbed If smoke is just kept in the mouth 25-30% of the nicotine is still absorbed Absorption is faster than an injection Affects brain in seconds
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Effects of Nicotine Stimulates the brain Similar to cocaine, opiates, and amphetamines Triggering the release of dopamine Neurotransmitter associated with pleasure and addiction Can also act as a sedative More with deep inhalations
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Effects of Nicotine Increases BP/HR Constricts blood vessels Inhibits urine formation, dulls taste buds Irritates the membranes in the mouth and throat Major contributor to heart/respiratory disease
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Tar Tar-thick, sticky, dark fluid Produced as tobacco is burned Contains carcinogens Damages mucus glands and cilia Areas of the lungs that usually remove irritating material
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Carbon Monoxide Present in smoke Same as gas that comes out of exhaust pipes Interferes with hemoglobin Oxygen carrying capacity Impairs functioning of the nervous system
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Health Effects of Cigarette Smoking Heart disease Leading cause of death for smokers Doubles the risk 50% of smokers that suffer heart attacks do not recover Causes cardiomyopathy Weaken heart muscle
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This note was uploaded on 02/02/2012 for the course ATH 160 taught by Professor Nickson during the Fall '08 term at Chapman University .

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AT 160. Ch13 tobacco. FA06 - Chapter 13 Tobacco Use Misuse...

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