Tympanic plexus is formed by________________?
Correct answer: A. Tympanic branch of IX nerve
- A. Tympanic branch of IX nerve
- B. Vagus nerve
- C. Facial nerve
- D. Mandibular nerve
Explanation
The tympanic plexus is formed chiefly by the tympanic branch of the glossopharyngeal nerve, or Jacobson nerve, with sympathetic fibres from the internal carotid plexus. The vagus, facial and mandibular nerves do not form this plexus.
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