0 relating to the small cartilages (= two pyramid-shaped parts) and muscles that are connected at the back of the larynx --
The muscles attached to the arytenoid cartilages control the degree of opening.
The arytenoids are paired cartilages with a medial and a lateral process each.
By rotating the arytenoid cartilages laterally, these muscles abduct the vocal cords and thereby open the rima glottidis.
There are gradual changes in stiffness between the pliable vocal fold and hard, hyaline cartilage of the arytenoid.
The membrane runs between the lateral aspects of the epiglottis and arytenoid cartilages on each side.
The vestibular fold is formed by the vestibular ligament extending from lateral walls of epiglottis to arytenoid cartilage covered with mucous membrane.
The epiglottis and arytenoids are cherry-red and swollen.
It is closed by the lateral cricoarytenoid and arytenoid muscles.
