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5 Written questions

5 Matching questions

  1. CNS
  2. divisions of PNS
  3. continuous conduction
  4. if transmission is _______ the NT-receptor reaction will depolarize
  5. what happens when a neuron is stimulated? in general
  1. a occurs in unmyelinated axons; wave of depolarization & repolarization travels from one membrane patch to the next--like dominoes falling
  2. b brain & spinal cord; central of integration and control
  3. c sensory division-afferent division; motor division-efferent division-somatic and autonomic nervous systems
  4. d excitatory
  5. e changes in membrane make it more permeable to Na+, causing Na+ to rush into cell

5 Multiple choice questions

  1. involuntary, conducts impulses from CNS to smooth muscle, cardiac muscle, and glands
  2. 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
  3. axon terminal; site of transduction (conversion of an electrical signal into chemical signal)
  4. more K+ inside, more Na+ outside
  5. occurs in myelinated axons; it's faster

5 True/False questions

  1. how many spinal nerves in the PNS? what do they do?presynaptic=1st; post-synaptic=2nd


  2. resting membrane potentialactive transport pump=to maintain homeostasis; resting=difference between inside & outside (-70 mV)


  3. ependymal cellsfor myelin sheaths around larger nerve fibers in PNS; vital to neuronal regeneration, promote repair


  4. interneuronsin CNS, form connecting link between afferent & efferent


  5. conductivityability to respond to stimulus