posterior cricoarytenoid muscle

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Also found in: Acronyms.

pos·ter·i·or cri·co·ar·y·te·noid mus·cle

(pos-tēr'ē-ŏr krī'kō-ar-i-tē'noyd mŭs'ĕl)
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 during deep inhalation; nerve supply, recurrent laryngeal.
Synonym(s): musculus cricoarytenoideus posterior.
References in periodicals archive ?
Atrophy of the posterior cricoarytenoid muscle as an indicator of recurrent laryngeal nerve palsy.
The posterior cricoarytenoid is injected with an initial dose of 3.
31] Most of these patients received bilateral posterior cricoarytenoid injections.

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