Posted by judyb on 5/24/2001, 11:45 am Glossary -------------------------------------------------------------------------------- Addiction: A chronic, relapsing disease, characterized by compulsive Adrenal glands: Glands located above each kidney that secrete hormones, e.g., Craving: A powerful, often uncontrollable desire for drugs. Dopamine: A neurotransmitter present in regions of the brain that regulate Emphysema: A lung disease in which tissue deterioration results in increased Nicotine: An alkaloid derived from the tobacco plant that is responsible for Pharmacokinetics: The pattern of absorption, distribution, and excretion of a Physical dependence: An adaptive physiological state that occurs with regular Rush: A surge of pleasure that rapidly follows administration of some drugs. Tobacco: A plant widely cultivated for its leaves, which are used primarily for Tolerance: A condition in which higher doses of a drug are required to produce Withdrawal: A variety of symptoms that occur after use of an addictive drug is
drug-seeking and use and by neurochemical and molecular changes in the brain.
adrenaline.
movement, emotion, motivation, and the feeling of pleasure.
air retention and reduced exchange of gases. The result is difficult breathing
and shortness of breath. It is often caused by smoking.
smoking's psychoactive and addictive effects; is toxic at high doses but can be
safe and effective as medicine at lower doses.
drug over time.
drug use and results in a withdrawal syndrome when drug use is stopped; usually
occurs with tolerance.
smoking; the tabacum species is the major source of tobacco products.
the same effect as during initial use; often leads to physical dependence.
reduced or stopped.
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