BMS1032 Neurology Example Q's

Practice questions set by my lecturer 

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1. regarding the sympathetic division of the ANS:

  • Ach is secreted by parasympathetic postganglionic fibres
  • the sympathetic chain extends from the thoracic to the sacral regions of the spinal cord
  • most sympathetic preganglionic fibres secrete noradrenaline
  • sympathetic postganglionic neurones are found in spinal segments from T1 to L2
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2. when an AP arrives at a synapse, which way do calcium ions move?

  • out of the postsynaptic terminal into the cleft
  • no movement across the cell membrane
  • into the presynaptic terminal
  • into the postsynaptic terminal
  • out of the presynaptic terminal into the cleft

3. which of the following is an important functional parameter of pain receptors?

  • give rise to signals that convey the location of a joint
  • can be inhibited voluntarily
  • exhibit little or no adaption
  • signal only flexion reflex at joint capsules
  • are not affected by muscle tension

4. which of the following statement concerning the velocity of AP propagation is correct?

  • unaffected if the axon becomes demyelinated
  • fast in myelinated axons
  • slower in myelinated axons
  • independent of axon diameter
  • faster in unmyelinated axons

5. which statement concerning the AP is correct?

  • it may vary considerably in amplitude
  • it becomes larger as the stimulus strength increases
  • it results from a larger increase in the membrane permeability to sodium ions
  • it can summate one with another
  • it can generate in the absence of sodium ions

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