SAR SH 522 Lecture Notes - Lecture 13: Cricothyroid Ligament, Arytenoid Cartilage, Cricothyroid Muscle

• School: Boston University
• Department: Speech, Language & Hearing Sciences
• Course: SAR SH 522
• Professor: Polyak

Document Summary

Lecture 13 thyroid notch (adam"s apple) thyrohyoid membrane thyroid (lamina: epiglottis, hyopiglottic ligament, hyoid bone. 5: oblique line, part of the thyroid where a lot of muscles attach. It reduces resistance to air ow: cricoid cartilage, on top of it is the crico-thyroid joint that binds it to the thyroid, trachea. Epiglottic fold: a block of tissue that embeds the muscle: tongue, epiglottis. C: vocal (true) fold, aryepiglottic fold, cuneiform cartilage, corniculate cartilage, glottis. The thyrohyoid membrane attaches the thyrdoi to the hyoid. The upper edge of the corpus elasticus is the vocal ligament true. Squamous epithelium + slp = mucosal vocal fold lining true. The epiglottis is a cartilage of the larynx true. The function of the dlp is supportive true. Major adductor: lateral cricoarytenoid rocks the arytenoids in and down. Major abductor: posterior cricoarytenoid rotates arytenoids out. Major tensor: cricothyroid pars recta and oblique glides the arytenoid. Innervated by superior laryngeal nerve or cn x.