Nervous System Vocabulary

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Across
  1. 3. threadlike extension of a neuron that carries nerve impulses toward the cell body
  2. 5. neuron- a neuron that picks up stimuli from the internal and external environment and converts each stimulus into a nerve impulse
  3. 6. the part of the brain that intercepts input from the senses,controls the movement of the skeletal muscles, and carries out complex mental processes
  4. 11. nervous system- the brain and the spinal cord, control center of the body
  5. 12. a neuron that carries nerve impulses from one neuron to another
  6. 13. cord- the thick column of nerve tissue that is enclosed by the vertebrae and that links the brain to most of the nerves in the peripheral nervous system
  7. 14. threadlike extension of a neuron that carries nerve impulses away from the cell body
  8. 15. nervous system- all the nerves located outside the central nervous system,connects the central nervous system to all parts of the body
  9. 16. impulse-a message carried by a neuron
Down
  1. 1. neuron- a neuron that sends an impulse to a muscle,causing the muscle to contract
  2. 2. part of the brain that coordinates the actions of the muscles and helps maintain balance
  3. 4. the part of the brain that controls many body functions that occur automatically
  4. 7. cell that carries messages through the nervous system
  5. 8. part of the central nervous system that is located in the skull and that controls most functions in the body
  6. 9. the tiny space between the tip of an axon and the next structure
  7. 10. an automatic response that occurs very rapidly and without conscious control