Nervous System and Its Functions
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Questions and Answers

What is the role of the sympathetic nervous system?

  • Mobilize energy in cases of emergencies (correct)
  • Promote relaxation in organisms
  • Transmit signals from the body to the CNS
  • Mediate voluntary movement

    • Which part of the nervous system first arose in wormlike organisms about 550 to 600 million years ago?

  • Motor nerves
  • Peripheral nervous system
  • Central nervous system
  • Nervous tissue (correct)

    • What are the nerves that transmit signals from the brain called?

  • Sensory nerves or afferent nerves
  • Mixed nerves
  • Spinal nerves
  • Motor nerves or efferent nerves (correct)

    • What is the main function of the autonomic nervous system?

    <p>Regulate involuntary bodily functions</p> Signup and view all the answers

    What does the peripheral nervous system mainly consist of?

    <p>Nerves, which are enclosed bundles of long fibers that connect the CNS to every other part of the body.</p> Signup and view all the answers

    What is the main function of the parasympathetic nervous system?

    <p>Activating relaxed state in organisms</p> Signup and view all the answers

    Which part of the nervous system consists of the brain and spinal cord?

    <p>Central nervous system</p> Signup and view all the answers

    What are nerves that transmit signals from the body to the central nervous system called?

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

    Which subsystem of the peripheral nervous system mediates voluntary movement?

    <p>Somatic nervous system</p> Signup and view all the answers

    What is the main function of the sympathetic nervous system?

    <p>Mobilizing energy in emergencies</p> Signup and view all the answers

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