Which muscle acts as a relaxer of the vocal folds?

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Multiple Choice

Which muscle acts as a relaxer of the vocal folds?

Explanation:
Relaxation of the vocal folds is produced by the thyromuscularis, the muscular part of the thyroarytenoid muscle. When this muscle contracts, it pulls the arytenoid cartilages forward and slackens the vocal folds, reducing tension and lowering the pitch. In contrast, the cricothyroid lengthens and stiffens the folds to raise pitch, while the thyrovocalis part of the thyroarytenoid tends to tense the folds, and the lateral cricoarytenoid mainly adducts (brings together) the folds. So the thyromuscularis is the muscle that acts as the relaxer.

Relaxation of the vocal folds is produced by the thyromuscularis, the muscular part of the thyroarytenoid muscle. When this muscle contracts, it pulls the arytenoid cartilages forward and slackens the vocal folds, reducing tension and lowering the pitch. In contrast, the cricothyroid lengthens and stiffens the folds to raise pitch, while the thyrovocalis part of the thyroarytenoid tends to tense the folds, and the lateral cricoarytenoid mainly adducts (brings together) the folds. So the thyromuscularis is the muscle that acts as the relaxer.

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