lateral cricoarytenoid muscle


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lat·er·al cri·co·ar·y·te·noid mus·cle

(lat'ĕr-ăl krī'kō-ar'i-tē'noyd mŭs'ĕl)
Intrinsic muscle of larynx; origin, upper margin of arch of cricoid cartilage; insertion, muscular process of arytenoid; action, adducts vocal folds (narrows rima glottidis); nerve supply, recurrent laryngeal.
Synonym(s): musculus cricoarytenoideus lateralis.
References in periodicals archive ?
Traction of lateral cricoarytenoid muscle for unilateral vocal fold paralysis: Comparison with Isshiki' s original technique of arytenoid adduction.
Direct pull of lateral cricoarytenoid muscle for unilateral vocal cord paralysis.
In addition, botulinum toxin injection into the lateral cricoarytenoid muscle is helpful in some patients.
The posterior cricoarytenoid muscle is the single abductor t of the vocal fold, and the lateral cricoarytenoid muscle s contributes to adduction in concert with the action of the thyroarytenoid muscle.
Botulinum toxin was injected into the right lateral cricoarytenoid muscle.
26] The third motor branch innervates the lateral cricoarytenoid muscle (LCA), passing through it to terminate in the thyroarytenoid muscle (TA).
7] This is in contrast to other evidence that suggests that fast-twitch fibers in the thyroarytenoid and lateral cricoarytenoid muscles are reinnervated more rapidly and to a greater degree than slow-twitch fibers.

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