Nervous System Functional Anatomy Quiz
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Questions and Answers

What is the main functional cell of the nervous system?

  • Dendrite
  • Axon
  • Neuron (correct)
  • Glial cell

    • What is the name of the electrical signal in the axon that results when the membrane potential reaches threshold?

  • Graded potential
  • Action potential (correct)
  • Threshold potential
  • Resting potential

    • What are the gaps in the myelin sheath that help with the transmission of the nerve impulse called?

  • Nodes of Ranvier (correct)
  • Action potentials
  • Graded potentials
  • Synapses

    • Which type of nerves carry impulses only toward the central nervous system?

    <p>Sensory (afferent) nerves</p> Signup and view all the answers

    What causes the resting membrane potential in a non-stimulated nerve cell?

    <p>Imbalances in ion concentrations from inside to outside of cells</p> Signup and view all the answers

    What is the function of the myelin sheath in the nervous system?

    <p>Provides electrical insulation and increases the speed at which action potentials propagate</p> Signup and view all the answers

    Which part of the neuron receives chemical messages from other neurons?

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

    What is the global function of the nervous system?

    <p>Detects and processes information</p> Signup and view all the answers

    Which part of the neuron sustains all processes within the cell body?

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

    What is the role of the axon in the neuron?

    <p>Conducts action potentials</p> Signup and view all the answers

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