Anatomy of Phonation and Swallowing Flashcards
Speech breathing
controlled in a manner that allows one to maintain constant pressure for phonation.
Pressure and Airflow
Create the aerodynamic forces that drive phonation
Larynx
Connects the oropharynx and laryngopharynx to the trachea
Larnygeal cartilages
these cartilages and the muscles that move them maintain an open airway for respiration and enable one to control the flow of air and prevent aspiration
thyroid cartilage
largest cartilage of the larynx; shaped like a shield in front and open in back.
laryngeal prominence
an anterior projection where left and right thyroid plates fuse (adam’s apple)-more acute in males
superior horns
superior extensions from the thyroid plates that attach to the hyoid bone via ligaments
inferior horns
smaller, inferior extensions from the thyroid places that form joints with the cricoid cartilage
Cricoid cartilage
a complete ring of cartilage attached to the superior end of the trachea that forms the base of the larynx. Connects to the first tracheal semicircular ring
posterior lamina
large, flattened posterior portion of the cricoid. The superior edge has right and left facets on which the arytenoid cartilages sit and articulate (rock back/forth and slide front/back)
Arytenoid cartilages
two small cartilages that articulate on saddle-shaped joints located on the posterior surface of the cricoid
epiglotis
mucous membrane covered elastic cartilage that originates just below the thyroid notch and extends upward toward the hyoid bone. Inverted; made of highly flexible cartilage
aryepiglottic folds
folds made up of connective tissue and muscle that extend posteriorly between the lateral sides of the epiglottis and the arytenoid cartilages
