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Autonomic Nervous System
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Autonomic Nervous System

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Questions and Answers

What is the characteristic of the preganglionic fibers of the sympathetic nervous system?

  • Short preganglionic fibers (correct)
  • Preganglionic fibers that originate in the brain
  • Long preganglionic fibers
  • Preganglionic fibers that originate in the spinal cord
  • What is the main location of the autonomic ganglia in the sympathetic nervous system?

  • In the brain
  • Close to the effector organ
  • On either side of the vertebral column (correct)
  • In the spinal cord
  • What is the characteristic of the postganglionic fibers of the parasympathetic nervous system?

  • Long postganglionic fibers
  • Postganglionic fibers that originate in the spinal cord
  • Postganglionic fibers that originate in the brain
  • Short postganglionic fibers (correct)
  • What is the origin of the cranial outflow of the parasympathetic nervous system?

    <p>Certain cranial nuclei</p> Signup and view all the answers

    What is the characteristic of the autonomic nervous system in relation to ganglia?

    <p>Ganglia are present in the autonomic nervous system</p> Signup and view all the answers

    What is the origin of the sacral outflow of the parasympathetic nervous system?

    <p>Cells in the 2nd, 3rd and 4th sacral segments of the spinal cord</p> Signup and view all the answers

    What is the characteristic of the sympathetic nervous system in relation to the spinal cord?

    <p>Preganglionic fibers originate in the lateral horn cells of all thoracic and upper three lumbar segments of the spinal cord</p> Signup and view all the answers

    What is the characteristic of the autonomic nervous system in relation to effector organs?

    <p>The autonomic nervous system controls smooth muscles, cardiac muscles, and exocrine glands</p> Signup and view all the answers

    What is the characteristic of the parasympathetic nervous system in relation to preganglionic fibers?

    <p>Preganglionic fibers are long</p> Signup and view all the answers

    What is the note-worthy aspect of the supra renal medulla?

    <p>It is a modified sympathetic ganglion</p> Signup and view all the answers

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