El músculo cricoaritenoideo lateral es un músculo intrínseco de la laringe. Reduce el espacio entre las cuerdas vocales, lo que ayuda a modular el tono y el volumen del habla. Inserciones: se origina en el arco del cartílago cricoides y se inserta en la apófisis muscular del cartílago aritenoides. Acciones: aducción de los pliegues vocales. Inervación: nervio laríngeo inferior (rama del nervio laríngeo recurrente). Irrigación sanguínea: ramas laríngeas de las arterias tiroideas superior e inferior. By TeachMeSeries Ltd (2026) Fig. 1: vista superior 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 cricoarytenoid muscle and its function? The cricoarytenoid muscle is an intrinsic muscle of the larynx that reduces the space between the vocal cords. This action aids in modulating the tone and volume of speech. Where does the cricoarytenoid muscle originate and insert? This muscle originates from the arch of the cricoid cartilage and inserts into the muscular process of the arytenoid cartilage. Its specific attachments are crucial for its function in voice modulation. What actions does the cricoarytenoid muscle perform? The primary action of the cricoarytenoid muscle is the adduction of the vocal folds. This adduction is essential for producing sound during speech. Which nerve innervates the cricoarytenoid muscle? The cricoarytenoid muscle is innervated by the inferior laryngeal nerve, a branch of the recurrent laryngeal nerve. This innervation is vital for its motor function in the larynx. What is the blood supply to the cricoarytenoid muscle? The blood supply to the cricoarytenoid muscle comes from the laryngeal branches of the superior and inferior thyroid arteries. This vascular supply supports the muscle's metabolic needs during its function. Rate This Article