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The transverse arytenoid is an unpaired intrinsic muscle of the larynx. It is situated deep to the two oblique arytenoids; the oblique and transverse arytenoids are often considered two parts of a single muscle - the interarytenoid (arytenoid) muscle (which is then said to have an oblique part and a transverse part).
The posterior surface is triangular, smooth, concave, and gives attachment to the arytenoid muscle and transversus.. The antero-lateral surface is somewhat convex and rough. 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.
The arytenoid muscle / ær ɪ ˈ t iː n ɔɪ d / or interarytenoid muscle is a composite intrinsic muscle of the larynx, consisting of a transverse part and an oblique part - the two parts may be considered as separate muscles: an unpaired transverse arytenoid muscle, and a bilaterally paired oblique arytenoid muscle.
Lateral cricoarytenoid muscles adduct and internally rotate the arytenoid cartilages, increase medial compression. Transverse arytenoid muscle adduct the arytenoid cartilages, resulting in adducted vocal cords. [6] Oblique arytenoid muscles narrow the laryngeal inlet by constricting the distance between the arytenoid cartilages.
The muscle closes the rima glottidis, adducting (approximating) the apices of the vocal process to close the ligamentous part of rima glottidis (in which it is synergystic with the oblique arytenoid muscles and transverse arytenoid muscle). [1] It thus functions to close the airway. [citation needed] It also shortens and slackens the vocal ...
During an arytenoidectomy, the surgeon removes the arytenoid cartilage. The arytenoid cartilages are a pair of pyramid-shaped structures in the larynx (voice box) that play an essential role in vocal sound production. Various techniques, such as laser surgery or conventional surgical instruments, may be employed based on the severity of the ...
It is superficial to the transverse arytenoid; the oblique and transverse arytenoids are often considered two parts of a single muscle - the interarytenoid muscle (which is then said to have an oblique part and a transverse part). [1] Each oblique arytenoid muscle attaches to both arytenoid cartilages; the two oblique arytenoids thus cross each ...
arytenoid, transverse: head, larynx (left/right) arytenoid cartilage on one side arytenoid cartilage on opposite side superior laryngeal branch of superior thyroid artery: vagus nerve [CNX], recurrent laryngeal nerve: approximates arytenoid cartilages (closes rima glottidis) 2 1 arytenoid, oblique: head, larynx (left/right) arytenoid cartilage ...