Nerve and Muscle Anatomy Quiz
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Questions and Answers

What is the function of dendrites in a neuron?

  • Prevent ion flow
  • Produce action potential
  • Carry impulses away from the cell body
  • Carry impulses towards the cell body (correct)

    • What is the role of myelin sheath in a nerve fiber?

  • Carries impulses towards the cell body
  • Acts as an insulator preventing ion flow (correct)
  • Enhances ion flow
  • Produces resting membrane potential

    • What is the main function of the resting membrane potential in a nerve?

  • Produces action potential
  • Propagates the action potential
  • Maintains difference in electric potential between inside and outside of the membrane (correct)
  • Responds to external stimuli

    • What is the effect of threshold stimulus on a nerve?

    <p>Action potential is produced (D)</p> Signup and view all the answers

    What is the role of nodes of Ranvier in a myelinated axon?

    <p>Allow ion flow faster via saltatory conduction (B)</p> Signup and view all the answers

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