Muscles of Phonation Flashcards
Origin of oblique interarytenoid m?
muscular process of arytenoid cartilage
Insertion of oblique interarytenoid m?
apex of opposite arytenoid cartilage (x shape)
Action of oblique interarytenoid m?
adduct glottis
Origin of transverse interarytenoid m?
lateral surface of arytenoid cartilage
Insertion of transverse interarytenoid m?
lateral surface of opposite arytenoid
Action of transverse interarytenoid m?
adduct glottis
Origin of lateral cricoarytenoid m?
superior/lateral surface of cricoid cartilage
Insertion of lateral cricoarytenoid m?
muscular process of arytenoid cartilage
Action of lateral cricoarytenoid m?
adduct glottis
Origin of posterior cricoarytenoid m?
posterior of cricoid cartilage
Insertion of posterior cricoarytenoid m?
muscular process of arytenoid cartilage
Action of posterior cricoarytenoid m?
abduct glottis
Origin of cricothyroid m?
anterior surface of cricoid cartilage
Insertion of cricothyroid m?
1) vertical part- lower surface of thyroid cartilage
2) oblique part- lateral surface of thyroid cartilage, by inferior horns
Action of cricothyroid m?
tense and lengthen TVF
Origin of vocalis (medial thyroarytenoid) m?
thyroid cartilage
Insertion of vocalis m?
vocal process of arytenoid cartilage
Action of vocalis m?
tenses TVF
Origin of lateral thyroarytenoid m?
thyroid cartilage
Insertion of lateral thyroartyenoid m?
muscular process of arytenoid cartilage