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Lateral cricoarytenoid muscle information


Lateral cricoarytenoid
Muscles of larynx. Side view. Right lamina of thyroid cartilage removed.
Details
OriginLateral part of the arch of the cricoid
InsertionMuscular process of the arytenoid cartilage
NerveRecurrent laryngeal branch of the vagus
ActionsAdduct and medially rotate the cartilage, pulling the vocal ligaments towards the midline and backwards and so closing off the rima glottidis
AntagonistPosterior cricoarytenoid muscle
Identifiers
Latinmusculus cricoarytaenoideus lateralis
TA98A06.2.08.006
TA22198
FMA46579
Anatomical terms of muscle
[edit on Wikidata]

The lateral cricoarytenoid (also anterior cricoarytenoid) is an intrinsic muscle of the larynx. It attaches at the cricoid cartilage anteriorly, and at the arytenoid cartilage of the same side posteriorly. It is innervated by the recurrent laryngeal nerve. It acts to close the rima glottidis, thus closing the airway.

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