ART 1001 Lecture : 1001 Lecture 14rev Rococo
Document Summary
Corniculates: help push together the arytenoids: provide addition structure to abduct and adduct the arytenoids, sit just on top the arytenoids. Helps attach larynx to other parts like jaw and mandible, which are superior to larynx. Helps the thyroid move, which can provide higher/lower pitch: laryngeal ligaments and membranes. Everything is airtight and sealed no space between the cartilages. Conus elasticus: stretchiness between cricoid and thyroid; stretchier than most others and important because thyroid needs stretchiness to move on top of cricoid: laryngeal muscles. External or lateral thyroarytenoid (muscularis or thyromuscularis: origin: angle of thyroid, insertion: muscular process of arytenoid, action: pull arytenoids forward and rotate them, as it pulls, the vocal process is rotated inward (vocal folds come together) Posterior cricoarytenoid: origin: posterior surface of cricoid, insertion: muscular process of arytenoid, action: open and tense vfs; only abductors in larynx (pull them apart)
