El músculo aritenoideo es un músculo intrínseco de la laringe. Tiene fibras tanto oblicuas como transversales. Inserciones: se extiende desde un cartílago aritenoide hasta el aritenoide opuesto. Acciones: aducción de los cartílagos aritenoides, lo que provoca un estrechamiento de la entrada de la laringe. Inervación: nervio laríngeo inferior (rama del nervio laríngeo recurrente). Irrigación sanguínea: ramas de las arterias tiroideas superior e inferior (ramas laríngeas). By TeachMeSeries Ltd (2026) Fig. 1: vista posterior de los músculos intrínsecos de la laringe. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Frequent questions What is the function of the aritenoid muscle? The aritenoid muscle primarily functions to adduct the arytenoid cartilages, leading to a narrowing of the laryngeal entrance. This action is crucial for phonation and protecting the airway during swallowing. Where does the aritenoid muscle attach? The aritenoid muscle attaches between the arytenoid cartilages, extending from one arytenoid cartilage to the opposite one. This unique positioning allows it to effectively influence the movement of the larynx. What is the innervation of the aritenoid muscle? The aritenoid muscle is innervated by the inferior laryngeal nerve, which is a branch of the recurrent laryngeal nerve. This nerve supply is essential for the muscle's function in controlling laryngeal movements. What blood vessels supply the aritenoid muscle? The aritenoid muscle receives its blood supply from branches of the superior and inferior thyroid arteries. These vascular contributions are important for the muscle's metabolic needs. What clinical significance does the aritenoid muscle have? The aritenoid muscle plays a vital role in vocal cord function and airway protection, making it significant in conditions affecting voice and swallowing. Dysfunction of this muscle can lead to voice disorders or airway obstruction. Rate This Article