COMD 4500 Exam 2 (Modules 5-9) Part 1 Practice Questions and Answers

Functions of the Larynx breathing voicing/phonation airway protection Laryngeal Structures laryngeal skeleton (bone+cartilages) laryngeal joints soft tissue folds laryngeal muscles (extrinsic+intrinsic) Laryngeal Skeleton hyoid bone cartilages Hyoid Bone free floating bone Laryngeal Cartilages thyroid cricoid arytenoid corniculate epiglottis laryngeal joints cricoarytenoid cricothyroid Cricoarytenoid Joints -attach to base of arytenoids & superior surface of cricoid. -enable movement in many directions -instrumental for opening/closing VF -main agent of phonation Cricothyroid Joints -attach to inferior horns of thyroid & sides of cricoid -enables movement between cricoid & thyroid and stretching of the VF -main agent of pitch regulation Soft Tissue Folds aryepiglottic fold ventricular folds true folds Aryepiglottic Folds -most superior layer -contract to pull epiglottis over larynx entrance during swallow -main role: airway phonation Ventricular Folds -AKK fals vocal folds -close during swallow/open during phonation -main role: airway protection True Vocal Folds -AKA vocal cords -vibrate to modulate air flow for speech -main role: phonation