Lateral Cricoarytenoid - Podcast Version TeachMeAnatomy 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The lateral cricoarytenoid is an intrinsic muscle of the larynx. It narrows the space between the vocal folds, which ats to modulate the tone and volume of speech. Attachments: Originates from the arch of the cricoid cartilage and attaches to the muscular process of the arytenoid cartilage. Actions: Adduction of the vocal folds. Innervation: Inferior laryngeal nerve (branch of recurrent laryngeal). Blood Supply: Laryngeal banches of the superior and inferior thyroid arteries. By TeachMeSeries Ltd (2025) Fig 1Superior view of the intrinsic muscles of the larynx. 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 Rate This Article