three subsystems of voice
TRANSCRIPT
![Page 1: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/1.jpg)
Role of Speech-Language Pathology and RRP
By Julie L. Bowne, M.S., CCC-SLP
RRPF Voice Advisor
![Page 2: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/2.jpg)
Anatomy & Physiology
![Page 3: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/3.jpg)
Three Subsystems of Voice
• Respiratory System
• Vibratory System
• Resonating System
![Page 4: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/4.jpg)
Respiratory System
• Lungs
• Diaphragm
• Chest Muscles
• Abdominal Muscles
![Page 5: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/5.jpg)
Vibratory System = Larynx (“Voice Box”)
• Role in Sound Production, Breathing, and Airway Protection
• Key Components– Cartilages
– Muscles
– Houses Vocal Folds
– Nerves
![Page 6: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/6.jpg)
Laryngeal Cartilages
• Thyroid– Largest – 2 Plates Form Angle,
Which Determines the Prominence of the “Adam’s Apple”
• Cricoid– Sits on Top of Trachea– Ring-Shaped Base of
Laryngeal Framework
• Arytenoids– Vocal Ligaments and
Intrinsic Muscles Attach to These
– Open and Close Vocal Folds
• Corniculates• Cuneiforms• Epiglottis
![Page 7: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/7.jpg)
Laryngeal Muscles—Intrinsic
Adductors
• Intra-Arytenoid
• Lateral Cricoarytenoid
• Cricothyroid
– Increases Pitch
• Thyroarytenoid
– Decreases Pitch
– Main Muscle of Vocal
Folds
Abductor
• Posterior Cricoarytenoid
– Only Muscle that Brings Vocal Folds Away From Midline
![Page 8: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/8.jpg)
Laryngeal Muscles—Extrinsic
• One Attachment to Laryngeal Structure and One Outside Larynx
• Known as the Strap Muscles
• Raise or Lower Larynx for Swallowing, Pitch Changes, and Singing
• Suprahyoid– Above Larynx
– Raise Larynx
• Infrahyoid– Below Larynx
– Pull Larynx Down
![Page 9: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/9.jpg)
Vocal Folds
• 5 Layers
– Epithelium
– Lamina Propria• Superficial
• Intermediate
• Deep
– Vocalis Muscle
• Vocal Folds Vibrate in a Wave-Like Motion
• Pressure Builds Up Below the Folds = Vocal Folds Forced Open
• Drop in Pressure and Recoil Forces = Vocal Folds Forced Closed
![Page 11: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/11.jpg)
• Growths in Anterior Aspect (Front)
• Can Significantly Impact Voice due to V-Shape Structure of Vocal Folds
• Growths in Posterior Aspect (Back)
• Might Be Asymptomatic
• Might Not Affect Voice If Small
![Page 12: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/12.jpg)
Resonating System
• Vocal Tract Modulates Vibration of Vocal Folds
– Pharynx
– Mouth
– Nasal Passages
• Provides Individual Quality of Voice
• Articulators Modify Sounds Into Words
– Tongue
– Soft Palate
– Lips
![Page 13: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/13.jpg)
Nerve Input
Superior Laryngeal Nerve
Recurrent Laryngeal Nerve
![Page 14: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/14.jpg)
www.VoiceProblem.org
![Page 15: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/15.jpg)
Papilloma Above Level of Vocal Folds—No Voice Symptoms
Anterior Laryngeal Web From Repeated Surgeries
Arytenoid CartilagesOpen and Close Vocal Folds
Thickening of InterarytenoidSpace, Suggestive of Reflux
My Larynx With Papilloma
![Page 16: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/16.jpg)
Role of Speech-Language Pathologist
![Page 17: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/17.jpg)
• Perform Videostroboscopy in Conjunction with ENT
• Complete Comprehensive Voice Evaluation
– Perceptual and Acoustical Data
• Identify Vocal Misuses/Abuses and Provide Alternatives
• Recommend Environmental Modifications (Work or Home)
• Educate Regarding Vocal Hygiene
• Reinforce Medical Management of Reflux/Allergies
• Direct Voice Therapy
![Page 18: Three Subsystems of Voice](https://reader034.vdocuments.us/reader034/viewer/2022042611/58667a1b1a28abc33f8b4c98/html5/thumbnails/18.jpg)
Direct Voice Therapy
• Respiratory Support Exercises
• Vocal Function Exercises– To Balance 3 Sub-Systems of Voice
• Resonance Exercises– To Minimize Hyperfunction/Phonotrauma
• Laryngeal Relaxation Exercises– Easy Onset/Yawn-Sigh/Open Mouth Approaches
• Extra-Laryngeal Relaxation Exercises– Neck/Shoulder/Chest/Oral-Motor Stretches
• Circumlaryngeal Massage/Myofascial Release