Nervous system

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Across
  1. 4. the system of the body that carries information to all parts of the body
  2. 6. a cell of the nervous system that carries signals to the body from the brain, and from the body to the brain and/or spinal cord.
  3. 8. knowledge about the natural world that is based on facts learned through experiments and observation.
  4. 9. The kind of action or activity specific to a thing or person.
Down
  1. 1. a group of parts that work together to function or perform a task
  2. 2. an educated guess, or a guess you make based on information you already know.
  3. 3. any information that is gathered with the senses.
  4. 5. a bundle of nerves that runs along the back of a vertebrate within the spinal column
  5. 7. the main control center in an animal body; part of the central nervous system.