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