How Neurons Communicate

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Across
  1. 3. The chemical released to communicate with other neurons.
  2. 6. A charged particle.
  3. 7. The type of ion that is more abundant inside the cell.
  4. 9. What is the symbol for sodium?
  5. 11. The final end of the nerve cell that releases the electrical impulse.
  6. 12. A tiny cell of the nervous system.
Down
  1. 1. The tree-like extension of the neuron cell that receives the message.
  2. 2. When a cell becomes more positive or less negative.
  3. 4. A small electrical pulse by which neurons communicate
  4. 5. The structure that maintains the membrane gradient. Hint: The sodium potassium _______.
  5. 8. The long thread-like part of the neuron that the message is sent down.
  6. 10. The outer layer of a cell that allows particles in and out of the cell.