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5 Written questions

5 Matching questions

  1. conductivity
  2. neurons in the synaptic cleft
  3. what happens when a neuron is stimulated? in general
  4. nodes of Ranvier
  5. Integration
  1. a ability to transmit an impulse from one point to another
  2. b changes in membrane make it more permeable to Na+, causing Na+ to rush into cell
  3. c un-myelinated parts along the axon
  4. d The parallel processing and interpretation of sensory information to determine the appropriate response
  5. e presynaptic=1st; post-synaptic=2nd

5 Multiple choice questions

  1. transmit impulses from CNS to effector
  2. more K+ inside, more Na+ outside
  3. from one end of a neuron to the other (electrically, via APs); across the minute space separating one neuron from another (chemically, via NTs)
  4. CNS=astrocytes, ependymal cells, microglia, oligodendrocytes; PNS=Schwann cells, satellite cells
  5. thin, branched processes whose main function is to receive incoming signals; effectively increase surface area of neuron to increase ability to communicate with other neurons; small, mushroom-shaped dendritic spines further increase surface area

5 True/False questions

  1. action potentialsequence of depolarization, reverses polarization, and re-polarization


  2. depolarizationmembrane is impermeable to Na+ but permeable to K+ and it rushes outside the cell down the concentration gradient, which restores the resting membrane potential to -70 mV


  3. neurogliaspecialized immune cells that act as macrophages (disease eaters) of CNS


  4. resting membrane potentialsequence of depolarization, reverses polarization, and re-polarization


  5. divisions of PNScarry impulse from peripheral receptors to CNS


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