Nervous System and Drugs

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Across
  1. 2. affect the user’s perception by distorting what the user sees or hears.
  2. 3. speed up the functions of the central nervous system by speeding up the messages sent to and from the brain.
  3. 4. any drug that produces sleep or stupor and relieves pain due to its depressant effect on the central nervous system.
  4. 10. carries messages to and from the central nervous system.
Down
  1. 1. naturally occurring chemical in the brain,that sends messages between cells and affects the brain by slowing down the messages sent between cells.
  2. 5. composed of the brain and the spinal cord. It controls virtually all of the body’s functions.
  3. 6. consists of the brain, spinal cord, nerve fibers, and specialized nerve cells throughout the body
  4. 7. an important neurotransmitter that contributes to feelings of well-being and happiness.
  5. 8. a sense of day-dreamy well-being, free from cares and worries
  6. 9. slow down the function of the central nervous system.