NIDA for Teens: The Science Behind Drug Abuse
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Glossary

Glossary

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  • Dendrite: The specialized branches that extend from a neuron's cell body and function to receive messages from other neurons. [5]
  • Depressants: Drugs that relieve anxiety and produce sleep. Depressants include barbiturates, benzodiazepines, and alcohol. [3]
  • Dopamine: A brain chemical, classified as a neurotransmitter, found in regions of the brain that regulate movement, emotion, motivation, and pleasure. [1]
  • Drug: A chemical compound or substance that can alter the structure and function of the body. Psychoactive drugs affect the function of the brain, and some of these may be illegal to use and possess. [5]
  • Drug abuse: The use of illegal drugs or the inappropriate use of legal drugs. The repeated use of drugs to produce pleasure, to alleviate stress, or to alter or avoid reality (or all three). [5]
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