The arytenoid cartilages (/ærɪˈtiːnɔɪd/) are a pair of small three-sided pyramids which form part of the larynx.

[1] The posterior surface is triangular, smooth, concave, and gives attachment to the arytenoid muscle and transversus.

On it, near the apex of the cartilage, is a rounded elevation (colliculus) from which a ridge (crista arcuata) curves at first backward and then downward and forward to the vocal process.

They articulate with the supero-lateral parts of the cricoid cartilage lamina, forming the cricoarytenoid joints at which they can come together, move apart, tilt anteriorly or posteriorly, and rotate.

[2] This is most often caused by tracheal intubation,[2][3] major trauma to the larynx, [2] or more rarely a laryngeal mask airway.

[8] This article incorporates text in the public domain from page 1075 of the 20th edition of Gray's Anatomy (1918)