Quiz: Understanding the Nervous System and Nerve Cells
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Questions and Answers

What is the function of neuroglia in the nervous system?

  • Supporting the neurones (correct)
  • Insulating the axon
  • Regenerating nerve cells
  • Transmitting nerve impulses

    • Which part of a nerve cell transmits nerve impulses away from the cell body?

  • Myelin sheath
  • Axon (correct)
  • Neurilemma
  • Dendrites

    • Why are nerve cells (neurones) easily damaged by toxins or lack of oxygen?

  • Lack of blood supply to the nerves
  • Due to being located in the brain
  • Because they are not insulated by myelin (correct)
  • Absence of neuroglia support

    • Which part of a nerve cell is responsible for transmitting nerve impulses to the cell body?

    <p>Dendrites</p> Signup and view all the answers

    In the nervous system, what does the neurilemma do?

    <p>Helps in regenerating nerve cells</p> Signup and view all the answers

    What is the function of myelin sheath in a nerve cell?

    <p>Insulates and protects the axon</p> Signup and view all the answers

    Why are nerve cells (neurones) not replaced when they die?

    <p>Due to their unique shape and structure</p> Signup and view all the answers

    Which part of a neuron is described as an irregular-shaped, nucleated cell?

    <p>Cell body</p> Signup and view all the answers

    What type of tissue supports neurons but does not transmit nerve impulses?

    <p>Neuroglia</p> Signup and view all the answers

    Which part of a neuron helps to speed up nerve conduction by insulating the axon?

    <p>Myelin sheath</p> Signup and view all the answers

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