The Nervous System

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Across
  1. 4. long extension that carries electrical impulses away from the cell body and passes them to other cells
  2. 6. contains the potential energy needed to transmit an impulse
  3. 9. chemical signals of the nervous system
  4. 10. detect light intensity
  5. 11. branchlike extensions of the cytoplasm and cell membrane that receive messages from neighboring cells
  6. 12. tiny gap between the neurons
Down
  1. 1. transport Na+ ions out of the cell and bring K+ ions into the cell
  2. 2. specialized cells in the inner ear that contain mechanoreceptors that detect vibration
  3. 3. fast moving change in electrical charge across a neurons membrane
  4. 5. specialized cell that stores information and carries messages within the nervous system
  5. 7. detect color
  6. 8. part of the axon through which the impulses leave the neuron