COMD 4500 Exam 2 (Modules 5-9) part 1 Questions with Complete Solutions Functions of the Larynx - Correct Answer breathing voicing/phonation airway protection Laryngeal Structures - Correct Answer laryngeal skeleton (bone+cartilages) laryngeal joints soft tissue folds laryngeal muscles (extrinsic+intrinsic) Laryngeal Skeleton - Correct Answer hyoid bone cartilages Hyoid Bone - Correct Answer free floating bone Laryngeal Cartilages - Correct Answer thyroid cricoid arytenoid corniculate epiglottis laryngeal joints - Correct Answer cricoarytenoid cricothyroid Cricoarytenoid Joints - Correct Answer -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 - Correct Answer -attach to inferior horns of thyroid & sides of cricoid -enables movement between cricoid & thyroid and stretching of the VF 1 / 2
-main agent of pitch regulation Soft Tissue Folds - Correct Answer aryepiglottic fold ventricular folds true folds Aryepiglottic Folds - Correct Answer -most superior layer -contract to pull epiglottis over larynx entrance during swallow
-main role: airway phonation
Ventricular Folds - Correct Answer -AKK fals vocal folds -close during swallow/open during phonation
-main role: airway protection
True Vocal Folds - Correct Answer -AKA vocal cords -vibrate to modulate air flow for speech
-main role: phonation
Laryngeal Muscles: Extrinsic - Correct Answer -one attachment with larynx & another attachment outside of larynx -stabilize the larynx within neck -elevate (suprahyoid) or lower (infrahyoid) larynx position Laryngeal Muscles: Intrinsic - Correct Answer -both attachment points IN the larynx -voice production ABductor Muscle (intrinsic) (open the glottis & separate VFs) - Correct Answer -posterior cricoarytenoids (PCA) ADductor Muscles (intrinsic) (close the glottis & bring VF together) - Correct Answer -lateral cricoarytenoids
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