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Phonation-Muscles

S&HA&P PowerPoint 16

TermDefinition
Muscles of the Larynx: Adductors lateral crico-arytenoid, transverse arytenoid, oblique arytenoid
Muscles of the Larynx: Abductor posterior circoarytenoid
Muscles of the Larynx: Tensors medial thyroarytenoid (thyrovocalis), cricothyroid
Muscles of the Larynx: Relaxer lateral thyroarytenoid (thyromuscularis)
Muscles of the Larynx: Auxiliary muscles thyroepiglotticus, aryepiglotticus, superior thyroarytenoid
the ORIGIN and INSERTION of the lateral crico-arytenoid Origin: cricoid cartilage; Insertion: muscular process of arytenoid cartilage
the INNERVATION and FUNCTION of the lateral crico-arytenoid Innervation: CN X-Vagus; Function: adduction of vocal folds
the ORIGIN and INSERTION of the transverse and oblique arytenoids Origin: arytenoid cartilage; Insertion: opposite arytenoid cartilage
the INNERVATION and FUNCTION of the transverse and oblique arytenoids Innervation: CN X-Vagus; Function: adduction of vocal folds
the ORIGIN and INSERTION of the posterior crico-arytenoid Origin: cricoid cartilage; Insertion: arytenoid cartilage
the INNERVATION and FUNCTION of the posterior crico-arytenoid Innervation: CN X-Vagus; Function: abduction of the vocal folds
the ORIGIN and INSERTION of the crico-thyroid Origin: cricoid cartilage; Insertion: thyroid cartilage
the INNERVATION and FUNCTION of the crico-thyroid Innervation: CN X-Vagus; Function: depresses thyroid towards cricoid and tenses the vocal folds as a result
the ORIGIN and INSERTION of the medial thyro-arytenoid (thyrovocalis) Origin: thyroid cartilage; Insertion: arytenoid vocal process
the INNERVATION and FUNCTION of the medial thyro-arytenoid (thyrovocalis) Innervation: CN X-Vagus; Function: tense vocal folds
the ORIGIN and INSERTION of the lateral thyro-arytenoid (thyromuscularis) Origin: thyroid cartilage; Insertion: arytenoid muscular process
the INNERVATION and FUNCTION of the lateral thyro-arytenoid (thyromuscularis) Innervation: CN X-Vagus; Function: relaxes vocal folds
the ORIGIN and INSERTION of the thyro-epiglotticus Origin: thyroid cartilage; Insertion: epiglottis
the INNERVATION and FUNCTION of the thyro-epiglotticus Innervation: CN X-Vagus; Function: dilates the laryngeal airways
the ORIGIN and INSERTION of the ary-epiglotticus Origin: arytenoid cartilage; Insertion: epiglottis
the INNERVATION and FUNCTION of the ary-epiglotticus Innervation: CN X-Vagus; Function: constricts laryngeal airways
Created by: 100000299709410