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67122 Anatomy

A 56-year-old woman has just undergone a complete thyroidectomy. After she recovers from the anesthesia a hoarseness of her voice is noted that persists for 3 weeks. Subsequent examination shows a permanently adducted vocal fold on the right side. Surgical trauma to the innervation of which of the following muscles is most likely to be responsible for the position of the right vocal fold?

AAryepiglottic
BPosterior cricoarytenoid
CThyroarytenoid
DTransverse arytenoids
Anatomy
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