Purposes of the Laryngeal Muscles
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10 Terms
Vocalis Muscle
Tenses vocal folds and resists muscles that pull on vocal folds
Thyroepiglottic Muscle
Adjusts tension in vocal folds
Thyromuscularis
Slackens vocal folds
Cricothyroid
moves thyroid cartilage forward and down to lengthen/stretch the vocal folds
Posterior Cricoarytenoid
Rotates arytenoid cartilages to abduct (open) the glottis
Posterior Cricoarytenoid attachment point
Muscular Process
Lateral Cricoarytenoid
Internally rotates arytenoid cartilages to adduct (close) the glottis
Transverse Arytenoid
Adducts (closes) vocal folds
Oblique Arytenoids
Assists the transverse arytenoids (adduct vocal folds)
Oblique Arytenoid attachment point
Originates on muscular process and attaches at apex of other
