Emphysema occurs when the air sacs in your lungs are gradually destroyed, making you progressively more short of breath.

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Presentation transcript:

emphysema occurs when the air sacs in your lungs are gradually destroyed, making you progressively more short of breath

tobacc o plants of the genus Nicotiana, having soft narcotic properties

nicotine a colorless, poisonous alkaloid derived from the tobacco plant and used as an insecticide. It is the substance in tobacco to which smokers can become addicted

addictiv e the condition of being abnormally dependent. A physical or psychological need for a habit- forming substance, such as a drug or alcohol

coronary arteries that supply the heart tissues with blood

tar the tar in cigarettes increases a smoker's risk of lung cancer, emphysema, and bronchial disorders

cramp temporary partial paralysis of a muscle group, severe abdominal pain

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