12 Questions
Which muscle is responsible for widening the laryngeal inlet?
Thyroepiglottis muscle
Which two muscles are responsible for tensing the vocal cords?
Cricothyroid and vocalis muscles
What is the result of the contraction of the posterior cricoarytenoid muscle?
Abduction of the vocal cords
What is the role of the elastic tissue in the capsules of the cricoarytenoid joints?
It keeps the arytenoid cartilages apart
Which muscle is responsible for approximating the arytenoid cartilages?
Transverse arytenoid muscle
What is the result of the contraction of the lateral cricoarytenoid muscle?
Adduction of the vocal cords
What is the function of the vocalis muscle?
Tenses the vocal ligament
What happens to the shape of the glottis during deep inspiration?
It becomes diamond-shaped
What is the function of the sphincter at the inlet of the larynx?
Protects the larynx during swallowing
What happens to the vocal folds during expiration?
They adduct
What is the purpose of the Valsalva maneuver?
To force expiration against a closed glottis
What is the result of releasing compressed air in the respiratory tract?
A grunting sound is produced
This quiz covers the muscles that modify the laryngeal inlet and move the vocal folds, including their functions and actions. Test your knowledge of the anatomy and physiology of the larynx.
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