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posterior cricoarytenoid (muscle)

 

Definition: intrinsic muscle of larynx; origin, depression on posterior surface of lamina of cricoid; insertion, muscular process of arytenoid; action, abducts vocal folds, widening rima glottidis as for taking a deep breath; nerve supply, recurrent laryngeal.

Synonym(s): musculus cricoarytenoideus posteriorTA

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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