Neurons and Action Potentials

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Across
  1. 1. when the neuron receives an influx in sodium and becomes less negative
  2. 4. form of cell transport that requires no energy and takes place directly through the cell membrane
  3. 5. ________ions flood the axon terminal and cause the release of neurotransmitters
  4. 11. around -70mV
  5. 12. the chemical signals that travel from one neuron to another
Down
  1. 2. the movement of water in regard to cells
  2. 3. time when it is very difficult to fire another action potential
  3. 6. here molecules move against their concentration gradient
  4. 7. a white, fatty substance that serves as insulation for neurons
  5. 8. how we describe the structure of the cell membrane
  6. 9. often referred to as the "highway" of the nervous system, responsible for carrying messages from the CNS to the PNS
  7. 10. branches out of the cell body that receive information for a neuron