bio

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Across
  1. 1. imbalance of electrical charges between neurons
  2. 4. where information is trasmitted form neuron to another
  3. 6. action potentials that send information from one neuron to another
  4. 9. small temporary change in the electrical potential of a cell
  5. 11. they travel very fast along neurons
  6. 12. reflex where a electron is transferred from a sensory neuron to a motor neuron
  7. 14. nerve cell that conducts electrical pulses away from the cell
  8. 15. causes waves of depolarisation, repolarisation and refractory periods
  9. 16. that states that the response strenght of a cell depends on strenght of the stimulus
  10. 17. this degrades signal conduction decreases
  11. 18. cell membranes are excited _____ gates close and Na+ gates open
  12. 19. fundemental part of the nervous sytem
  13. 20. that can affect the brain and spinal cord
Down
  1. 2. of depolarization a neuron has to reach in order for action potential to occur
  2. 3. impulse conduction is slower and axon membrane is exposed
  3. 5. causes the inside of the cell to be more negative compared to the outside
  4. 7. autoimmune disease where the a immune system attacks _____
  5. 8. causes the inside of the cell to be more positive compared to the outside
  6. 10. During this period sodium-potassium pump is actively pumping out 3 Na+ per every 2 K+
  7. 13. when action potential it at its highest ____ gates close and K+ gates open