LING 2P90 Lecture Notes - Cricothyroid Ligament, Aryepiglottic Fold, Vestibular Fold

• School: Brock University
• Department: Linguistics
• Course: LING 2P90
• Professor: Richard Welland

Document Summary

Test: only have to know up to the spaces in the laryngeal. Quadrangular membranes: paired sheets of elastic tissue, epiglottis and thyroid cartilage to corniculate cartilages and medial surfaces of arytenoid cartilages, inferior edges from ventricular ligaments, superior edges form ventricular ligaments, folds contain aryepiglottic muscle fibers. Conus elasticus: connects arytenoid, thyroid, and cricoid cartilages, medial cricothyroid ligament and 2 lateral cricothyroid membranes (main portion, lateral cricothyroid membranes begin at superior edge of cricoid cartilage (form the vocal ligaments) Pyriform sinuses: lateral to aditus larynges (one on each side, bounded by thyroid cartilage and thyrohyoid membrane (laterally) and aryepiglottic folds and quadrangular membrane (medially) Space between the true vocal folds = rima glottides (glottis) Supra-glottal space: vestibule = space between aditus and ventricular folds, ventricle = space between ventricular folds and vocal folds. Sub-glottal spaces: below vocal folds to inferior border of cricoid cartilage, cone-shaped (narrowest at vocal folds, wider below)