Physiology Of Nerve By Dr. Ehab Shokry

14 Questions | Total Attempts: 294

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Physiology Of Nerve By Dr. Ehab Shokry - Quiz


Questions and Answers
  • 1. 
    ......... is a part of the PNS
    • A. 

      The Cerebrum

    • B. 

      The Spinal cord

    • C. 

      The Axillary nerve

    • D. 

      The Cerebellum

  • 2. 
    Which one do you like?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 3. 
    Types of junctions may be 
    • A. 

      Synapse

    • B. 

      MEP

    • C. 

      Neuro - epithelial

    • D. 

      All of the above

  • 4. 
    The excitable tissue 
    • A. 

      Give a stimulus by response

    • B. 

      Contracts by electrical changes

    • C. 

      Conducts by contraction

    • D. 

      None of the above

  • 5. 
    The RMP is du to
    • A. 

      Hyperpolarized state

    • B. 

      Isopotential state

    • C. 

      Polarized state

    • D. 

      Action potential

  • 6. 
    The couse of the polarized state is
    • A. 

      The K outflux

    • B. 

      The Na influx

    • C. 

      The Na-K pump

    • D. 

      None of the above

  • 7. 
    The slow outflux of K is the couse of
    • A. 

      Depolarization

    • B. 

      After depolarizatio

    • C. 

      Repolarization

    • D. 

      After hyperpolarization

  • 8. 
    The narrower the diameter of the nerve trunk
    • A. 

      The greater is the velocity

    • B. 

      The bigger is the magnitude

    • C. 

      The greater the duration

    • D. 

      The easier the conduction

  • 9. 
    Temporal summation
    • A. 

      Due to Action potential

    • B. 

      Couses Action potential

    • C. 

      Under the all or none rule

    • D. 

      Has a refractory period

  • 10. 
    The Chronaxie is the time needed for
    • A. 

      Excitation of the nerve

    • B. 

      Contraction of the muscle

    • C. 

      Conduction of impulse

    • D. 

      All of the above

  • 11. 
    Alkalosis causes
    • A. 

      Membrane stabilization

    • B. 

      Nerve block

    • C. 

      Convulsions

    • D. 

      None of the above

  • 12. 
    The supernormal phase is due to
    • A. 

      Decrease the threshold

    • B. 

      Decrease the excitability

    • C. 

      Decrease the permeability

    • D. 

      Decrease the activity

  • 13. 
    Energy consumption at the neural level 
    • A. 

      During the action potential

    • B. 

      During repolarization

    • C. 

      During the polarized state

    • D. 

      All of the above

  • 14. 
    The Delayed amount of heat
    • A. 

      Is 9 times the initial one

    • B. 

      Is 10 times the initial one

    • C. 

      Due to the spike potential

    • D. 

      Due to anaerobic reactions

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