Try it
ENT · Larynx and airway: laryngeal reinnervation
Sample itemA 30-year-old with an irreversible unilateral recurrent laryngeal nerve injury wants a dynamic restoration of the vocal fold bulk and tone. Which nerve is commonly anastomosed to the distal recurrent laryngeal nerve?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Ansa cervicalis
Reinnervation uses a branch of the ansa cervicalis anastomosed to the distal recurrent laryngeal nerve to restore muscle tone and prevent atrophy. It does not restore abduction or adduction movement, but improves the voice quality over months. It is an option when recovery is not expected.
Option by option
A. Greater auricular nerve
The greater auricular nerve is sensory.
B. Ansa cervicalis (correct)
Correct. The ansa cervicalis is the usual donor.
C. Lingual nerve
The lingual nerve is sensory to the tongue.
D. Phrenic nerve
The phrenic nerve is needed for the diaphragm.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More ENT questions
- AudiologyIn a tuning fork test, Rinne is negative (bone conduction louder than air conduction) in…
- EarWhich type of chronic suppurative otitis media is considered 'unsafe'?
- LarynxIn singers, vocal nodules typically occur at:
- Vestibular disordersA patient has recurrent attacks of vertigo lasting hours, with fluctuating low-frequency…