Lateral Cricoarytenoid Muscles (LCA)

The Lateral Cricoarytenoid muscles (LCA) are intrinsic muscles of the larynx functioning with the oblique arytenoid muscles and the transverse arytenoid muscle to adduct the vocal folds. The LCAs originate from the arch of the cricoid cartilage and are inserted into the muscular process of the arytenoid cartilage.


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