Sympathetic Innervation in the Head
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Questions and Answers

Which of the following statements about sympathetic innervation in the head is most accurate?

  • Sympathetic fibers travel directly from thoracic levels to the head.
  • Sympathetic innervation is not required for visceral structures in the head.
  • Sympathetic fibers travel through the carotid plexus to reach the head. (correct)
  • Sympathetic cell bodies are located in the brainstem.

    • Where do sympathetic fibers piggyback to reach the head?

  • On the cervical ganglion
  • On the thoracic levels
  • On the brainstem
  • On the carotid plexus (correct)

    • Which of the following is NOT true about sympathetic innervation in the head?

  • Sympathetic fibers travel directly from thoracic levels to the head. (correct)
  • Sympathetic innervation is required for visceral structures in the head.
  • Sympathetic cell bodies are absent in the brainstem.
  • Sympathetic fibers from thoracic levels reach the head via the carotid plexus.

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