posterior cricoarytenoid muscle

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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 ?
Eller et al., "The Innervation of the Posterior Cricoarytenoid Muscle: Exploring Clinical Possibilities," Journal of Voice 23, no.
Additionally, the epiglottis-posterior hypopharyngeal wall distance was narrowed, and the inferior constructor muscle and posterior cricoarytenoid muscle were compressed due to osteophytes on the left side.
Sataloff, "The innervation of the posterior cricoarytenoid muscle: exploring clinical possibilities," Journal of Voice, vol.
The electromyographic activity of the posterior cricoarytenoid muscle (PCA) is linked to that of the diaphragm.
For patients with abductor spasmodic dysphonia, injections are delivered to the posterior cricoarytenoid muscle, although cricothyroid injections have also been used.
Electronic pacing of reinnervated posterior cricoarytenoid muscles in the canine," Laryngoscope, vol.
There even exists a "NG tube syndrome" (5), the pathophysiological mechanism of which is thought to be paresis of the posterior cricoarytenoid muscles secondary to ulceration and infection over the posterior lamina of the cricoid.

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