Chapter 38: The Nervous System

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Across
  1. 4. a large, rapid electrical signal
  2. 5. receive instructions from sensory neurons or interneurons and activate muscles or glands
  3. 7. the site where a neuron communicates with another cell
  4. 9. branched tendrils protruding from the cell body that perform the "receive information" function
  5. 10. chemicals released by other neurons
  6. 12. the integration of the incoming information from many sources in the brain is achieved by this
  7. 13. a long, thin strand on a typical neuron that extends outward from the cell body
  8. 14. a swelling at the end of an axon of the "sending" neuron
Down
  1. 1. once the integration is complete the response of many body parts at once requires this
  2. 2. a fatty insulation formed by glial cells that wrap themselves around the axon
  3. 3. one of the two principal cell types of the nervous system; receive, process and transmit information
  4. 4. an element of the nervous system that "decides" what to do
  5. 6. an element of the nervous system that responds to stimuli
  6. 8. axons are typically bundled together to form this
  7. 11. performs the "process information" function
  8. 15. identified by the frequency of action potentials in a single neuron and the number of similar neurons firing at the same time
  9. 16. usually muscles or glands, perform the response directed by the nervous system