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Phonatory Muscles

Muscles of phonation

QuestionAnswer
Thyromuscularis (Thyroartyenoid) primarily serves as regulator of longitudinal tension, but can also act as a vocal fold adductor (Intrinsic Laryngeal Muscle, Relaxer)
Thyrovocalis (Thyroartyenoid) Primarily serves as a regulator of longitudinal tension, but can also act as a vocal fold adductor (Intrinsic Laryngeal Muscle,Tensor)
Superior Thyroarytenoid Tilts thyroid back to relax vocal folds; pulls muscular processes forward to aid in medial compression (Intrinsic Laryngeal muscles, auxiliary musculature)
posterior cricoarytenoid the only abductor laryngeal muscle (Intrinsic Laryngeal muscle, abductor)
lateral cricoarytenoid adducts the vocal folds; unopposed, will relax the folds (Intrinsic Laryngeal muscle, adductor)
oblique arytenoid approximate the arytenoids for medial compression (Intrinsic Laryngeal muscle, adductor, part of "interarytenoids)
Transverse Arytenoid approximate the arytenoids for medial compression (Intrinsic, adductor, "interarytenoids"
Cricothyroid with thyroid anchored, elevates cricoid; with cricoid anchored, depresses thyroid; increases distance between thyroid and cricoid to increase vocal fold tension
Digrasticus: Anterior Belly Elevates hyoid or depresses mandible (Extrinsic, Suprahyoid)
Digrasticus: Posterior Belly Elevates hyoid or depresses mandible (Extrinsic, suprahyoid)
Stylohyoid Elevates hyoid up and back (Extrinsic, suprahyoid)
Mylohyoid Elevates hyoid or depresses mandible (Extrinsic, suprahyoid)
Geniohyoid With mandible anchored, pulls hyoid up and forward (Extrinsic, suprahyoid)
Hyoglossus Extrinsic tongue muscle; may help position larynx (Extrinsic, suprahyoid)
Genioglossus Extrinsic tongue muscle; may help position larynx (Extrinsic, suprahyoid)
Thyrohyoid Depresses hyoid or elevates thyroid (Extrinsic, infrahyoid)
Sternohyoid Depresses hyoid; anchors hyoid when mandible is opened against resistance (Extrinsic, infrahyoid)
Omohyoid: Superior Belly Prevents neck region from collapsing during deep inhalation (Extrinsic, infrahyoid)
Ommohyoid: Inferior Belly Prevents neck region from collapsing during deep inhalation (Extrinsic, infrahyoid)
Sternothyoid Depresses thyroid cartilage (extrinsic, misc.)
Inferior Pharyngeal Constrictor Provide resonance characteristics to speech (extrinsic, misc.)
Created by: bertaka