Nervous system crossword puzzle

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Across
  1. 3. a part of the brain located near the brain stem
  2. 4. cells that receive sensory input to send motor commands throughout the body
  3. 7. an organ made up of tissues that are responsible for performing a specific function
  4. 8. the brain and the spinal cord
Down
  1. 1. a part of the brain in the front of the skull
  2. 2. a chemical that causes the transfer of nerve impulses
  3. 5. an organ that controls the mind of the body
  4. 6. and bundle of fibers made of neurons that transmit sensory and motor info to parts of the body