Muscles that attach directly to cartilage

Hi there

Intrinsic laryngeal muscles attach to cartilage. They are responsible for controlling sound production. A list of these is provided below.

Cricothyroid muscle lengthen and tense the vocal folds.
Posterior cricoarytenoid muscles abduct and externally rotate the arytenoid cartilages, resulting in abducted vocal folds.
Lateral cricoarytenoid muscles adduct and internally rotate the arytenoid cartilages, increase medial compression.
Transverse arytenoid muscle adduct the arytenoid cartilages, resulting in adducted vocal folds.[2]
Oblique arytenoid muscles narrow the laryngeal inlet by constricting the distance between the arytenoid cartilages.
Thyroarytenoid muscles – sphincter of vestibule, narrowing the laryngeal inlet, shortening the vocal folds, and lowering voice pitch. The internal thyroarytenoid is the portion of the thyroarytenoid that vibrates to produce sound.