Dr Gawad Physiology Course Online Exam - Excitable - Lec 3 – Les, Properties Of The Nerve
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Which of the following is true regarding conduction of myelinated nerve fibers:
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It is a continuous conduction
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It is slower than that of unmyleinated fibers
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It is in the form of jumping conduction
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None of the above
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7 MCQs (Only one correct answer)
Each MCQ: 1 mark, Total mark: 7
Allowed time: 8 min
Good Luck
dr Mohammed Abel Gawad
Quiz Preview
- 2.
Which of the following is the most excitable area of a myelinated nerve fiber:
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The terminal axon
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Cell body
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Nodes of ranvier
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The internodeal areas
Correct Answer
A. Nodes of ranvier -
- 3.
Which of the following is true regarding conduction in unmyelinated nerve fibers:
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It is in the form of saltatory conduction
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It saves energy
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It is local unpropagated
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It is in the form of continuous conduction
Correct Answer
A. It is in the form of continuous conduction -
- 4.
The first point of repolarization is:
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The last point depolarized
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The first point stimulated (depolarized)
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The myleinated area
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None of the above
Correct Answer
A. The first point stimulated (depolarized) -
- 5.
Which of the following is not a membrane stabilizer:
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Procaine
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Hypoxia
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Novocaine
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Alkalosis
Correct Answer
A. Alkalosis -
- 6.
Which of the following is true regarding strength-duration curve:
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Utilization time is the fastest response by the strongest strength.
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Rheobase strength leads to local excitatory state
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The longer the chronaxie the lower the excitability
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None of the above
Correct Answer
A. The longer the chronaxie the lower the excitability -
- 7.
Which of the following is false regarding local response (local excitatory state)
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There is decrease in RMP
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There is increase in excitability
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It is propagated potential
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Caused by subthreshold stimuli
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Can be summated
Correct Answer
A. It is propagated potential -
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Mar 21, 2022Quiz Edited by
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Feb 23, 2017Quiz Created by
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