Muscles of the Larynx

Question 1

Aryepiglotticus

Answer 1

A: from the oblique arytenoids to the aryepiglottic folds
Fx: Closes the aryepiglottic folds

Question 2

Lateral Cricoarytenoid

Answer 2

A: from the arch of the cricoid cartilage to the muscular process of the arytenoid
Fx: Closes the glottis (adducts the vocal folds)

Question 3

Posterior Cricoarytenoid

Answer 3

A: from the posterior surface of the cricoid lamina to the muscular process of the arytenoid cartilage
Fx: opens the glottis (abducts the vocal cords)

Question 4

Cricothyroid

Answer 4

A: From the anterolateral external aspect of the cricoid cartilage to the lower border of the thyroid cartilage & inferior cornu
Fx: tenses the vocal folds

Question 5

Interarytenoids (transverse & oblique)

Answer 5

A: from arytenoid to arytenoid
Fx: closes glottis & assists in closing aryepiglottic folds

Question 6

Thyroarytenoid

Answer 6

A: from the lower half of the thyroid angle to the anterolateral aspect of the arytenoid cartilage
Fx: closes glottis or slackens vocal folds

Question 7

Thyroepiglotticus

Answer 7

A: from the thyroid angle to the epiglottic margin
Fx: widens glottis

Question 8

Vocalis

Answer 8

A: from the thyroid angle to the vocal process of the arytenoid cartilage
Fx: slackens tensed vocal ligaments for changes in pitch