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5 Written questions

5 Matching questions

  1. An individual nerve fiber is surrounded by?
  2. What happens when the action potential repolarizes?
  3. When an action potential occurs completely or not at all
  4. The conscious awareness of sensory stimuli
  5. Neurons have what three parts?
  1. a endoneurium
  2. b perception
  3. c cell body, dendrites, and an axon
  4. d Na+ gates close
    K+ flows out of the cell
  5. e all-or-none principle

5 Multiple choice questions

  1. plasticity
  2. neurotransmitters, hormones, and particular ions
  3. ligand-gated channels
  4. excitatory: brings membrane closer to threshold
  5. neurons and neuroglia

5 True/False questions

  1. A sequence of rapidly occurring events that decrease and reverse the membrane potential and then eventually restore it to its resting stateaction potenital


  2. An action potential begins and travels due to the movement of what ions?Na+(sodium) and K+(potassium)


  3. What is known as the body's natural pain killers?opioid peptides


  4. Graded potentials communicate over?short distances


  5. During this phase the membrane potential is restored to the resting staterepolarization


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