Dr Gawad Physiology Course Online Exam - Excitable - Lec 3 – Les, Properties Of The Nerve

7 Questions | Total Attempts: 142

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Dr Gawad Physiology Course Online Exam - Excitable - Lec 3  Les, Properties Of The Nerve

7 MCQs (Only one correct answer)Each MCQ: 1 mark, Total mark: 7Allowed time: 8 minGood Luckdr Mohammed Abel Gawad


Questions and Answers
  • 1. 
    Which of the following is false regarding local response (local excitatory state)
    • A. 

      There is decrease in RMP

    • B. 

      There is increase in excitability

    • C. 

      It is propagated potential

    • D. 

      Caused by subthreshold stimuli

    • E. 

      Can be summated

  • 2. 
    Which of the following is true regarding strength-duration curve:
    • A. 

      Utilization time is the fastest response by the strongest strength.

    • B. 

      Rheobase strength leads to local excitatory state

    • C. 

      The longer the chronaxie the lower the excitability

    • D. 

      None of the above

  • 3. 
    Which of the following is not a membrane stabilizer:
    • A. 

      Procaine

    • B. 

      Hypoxia

    • C. 

      Novocaine

    • D. 

      Alkalosis

  • 4. 
    Which of the following is true regarding conduction in unmyelinated nerve fibers:
    • A. 

      It is in the form of saltatory conduction

    • B. 

      It saves energy

    • C. 

      It is local unpropagated

    • D. 

      It is in the form of continuous conduction

  • 5. 
    Which of the following is true regarding conduction of myelinated nerve fibers:
    • A. 

      It is a continuous conduction

    • B. 

      It is slower than that of unmyleinated fibers

    • C. 

      It is in the form of jumping conduction

    • D. 

      None of the above

  • 6. 
    Which of the following is the most excitable area of a myelinated nerve fiber:
    • A. 

      The terminal axon

    • B. 

      Cell body

    • C. 

      Nodes of ranvier

    • D. 

      The internodeal areas

  • 7. 
    The first point of repolarization is:
    • A. 

      The last point depolarized

    • B. 

      The first point stimulated (depolarized)

    • C. 

      The myleinated area

    • D. 

      None of the above

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