CDIS 4213 Lecture Notes - Lecture 9: Autoimmune Disease, Thyrohyoid Membrane, Foreign Body
29 Sep 2016
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Important to know the different kinds of cartilage. In relation to the thyroid gland it is it is more medial. 2 pairs crycothyroid joint and cricoarytenoid joint: allow movements of vocal folds, muscles, ligaments, and cartilages, cricothyroid. Important in our ability to increase vocal fold tension, and thus, increase pitch. Joint allows thyroid cartilage to tilt anteriorly: cricoarytenoid joint. Saddle pivotal joint, permits rocking motion and gliding. Twist/pivot in and down, then back out and up during phonation: rheumatoid arthritis in the larynx (good topic) Ra autoimmune disorder affecting joints in the body. Laryngeal symptoms in about 75% of people with ra. 3 most commonly reported symptoms: hoarseness, difficulty swallowing, foreign body sensation. Laryngeal membranes and ligaments: extrinsic membranes and ligaments. Connect laryngeal cartilages to other surrounding structures: internal membranes and ligaments. Regulate extent and direction of cartilage movement. Extrinsic laryngeal membranes and ligaments: hyothyroid membrane.
