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5 Written questions

5 Matching questions

  1. resting membrane picture
  2. ependymal cells
  3. resting membrane potential
  4. neurons need to be able to conduct info in 2 ways:
  5. process of neuron stimulation
  1. a depolarization, reverse polarization, repolarization, action potential
  2. b from one end of a neuron to the other (electrically, via APs); across the minute space separating one neuron from another (chemically, via NTs)
  3. c more K+ inside, more Na+ outside
  4. d active transport pump=to maintain homeostasis; resting=difference between inside & outside (-70 mV)
  5. e line ventricles of brain & central canal of spinal cord; some are ciliated which facilitate movement of cerebrospinal fluid

5 Multiple choice questions

  1. involved in formation of blood brain barrier, nutrient transfer, clearance of NTs
  2. sequence of depolarization, reverses polarization, and re-polarization
  3. occurs in myelinated axons; it's faster
  4. membrane 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
  5. CNS=astrocytes, ependymal cells, microglia, oligodendrocytes; PNS=Schwann cells, satellite cells

5 True/False questions

  1. nodes of Ranvierun-myelinated parts along the axon


  2. oliodentrocytesproduce myelin sheath-provides electrical insulation for certain neurons in CNS


  3. how many spinal nerves in the PNS? what do they do?12; carry info to and from brain


  4. motor neuronsin CNS, form connecting link between afferent & efferent


  5. if transmission is _______ the NT-receptor reaction will depolarize31; carry info to and from spinal cord