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5 Written questions

5 Matching questions

  1. Graded potentials
  2. Saltary conduction
  3. All-or-none law
  4. Absolute refractory period
  5. Electrical gradient
  1. a Jumping of action potentials from one node to another by the flow of positive ions
  2. b Membrane potential that varies in magnitude and does not follow the all-or-none law
  3. c Principle stating that the size, amplitude, and velocity of the action potential are independent of the intensity of the stimulus that initiated it
  4. d Difference in positive and negative charges across a membrane
  5. e Time immediately after an action potential, when the sodium gates close and the membrane cannot produce an action potential in response to stimulation of any intensity

5 Multiple choice questions

  1. Electrical gradient across a membrane
  2. Level of depolarization at which a brief stimulation triggers a rapid, massive electrical change by the membrane
  3. Ability of certain chemicals to pass more freely than others through a membrane
  4. Small neuron with no axon or a very short one
  5. Time after the absolute refractory period, when potassium gates remain open wider than usual, requiring a stronger than usual stimulus to initiate an action potential

5 True/False questions

  1. Resting potentialRapid depolarization and slight reversal of the usual polarization caused by stimulation beyond the threshold

          

  2. Propagation of the action potentialRapid depolarization and slight reversal of the usual polarization caused by stimulation beyond the threshold

          

  3. Myelinated axonsAxon covered with a myelin sheath

          

  4. MyelinElectrical gradient across a membrane

          

  5. Local AnestheticSmall neuron with no axon or a very short one

          

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