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Karma
| Class: | CDO 230 - Speech/Lang/Hearing Disorders |
| Subject: | Communication Disorders |
| University: | Central Michigan University |
| Term: | Spring 2010 |
INCORRECT
CORRECT

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vibration of the phonatory system (thyoarytenoid muscles) is due to what 2 facotrs?
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1. the elasticity of the tissue- myoelasticity 2. pressure changes between the vocal cords |
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according to the myoelastic-aerodynamic theory, what is NORMAL VOCAL FOLD FIBRATION?
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pleasant, healthy voice, - regular vocal fold vibration |
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according to the myoelastic- aerodynamic theory, what is ABNORMAL VIBRATION?
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raspy, hoarse voice, - irregular vocal fold vibration |
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pitch
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- frequency of vibration - measured in Hertz (Hz) - mass is thicker, the pitch is lower - more tension, pitch is higher |
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what is fundamental frequency?
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average rate of vocal fold vibration - how fast or slow they vibrate |
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what are the gender averages?
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adult male - 120 Hz adult female - 200 Hz infant/child - 300 Hz |
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loudness
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- intensity of the signal - dependent upon air pressure built up below the vocal folds - the higher the pressure, louder the voice - measured in decibels (db) |
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quality
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- what you're hearing Dependent upon: *regularity of the vibration * vocal fold adduction |
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what are the 3 etiologies of voice disorders?
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1. organic voice disorders 2. functional voice disorders 3. psychogenic voice disorders |
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etiology of voice disorders:: ORGANIC VOICE DISORDERS
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associated with some structured or anatomic deviation in the larynx and with the vocal folds themselves |
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etiology of voice disorders :: FUNCTIONAL VOIC DISORDERS
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- due to vocal abuse and or vocal misuse - functional disorders can become organic if prolonged |
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etiology of voice disorders :: PSYCHOGENIC VOICE DISORDERS
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- due to emotional state, and perception of reality - usually no evidence of structural abnormality |
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voice disorders of phonation
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voice sounds hoarse, breathy, raspy, low-pitched, and loudness problems |
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what are the 7 organic etiologies of voice disorders?
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1. vocal fold paralysis 2. cancer of larynx 3. vocal papilloma 4. laryngeal web 5. vocal nodules 6. vocal polyps 7. contact ulcers/granuloma |
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organic etiologies of VD :: VOCAL FOLD PARALYSIS
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- lack of nerve signal to the vocal folds 10th cranial nerve - vagus nerve - due to neurological disease or surgical mistake - voice = breathy and weak - may lead to wide open glottis known as aphonia |
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organic etiologies of VD :: CANCER OF LARYNX
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- 3-5% of cancers are laryngeal - more frequent in men than women - 4000 people undergo surgical treatment for cancer in U.S in one year - smoking is dominant factor related to laryngeal cancer - tumors on or around the vocal folds - symptoms = hoarseness, pain, difficulty swallowing |
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organic etiologies of VD :: VOCAL PAPILLOMA
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- wart-like growth(s) on the vocal folds or anywhere in the larynx - due to viral infection - greater in children than adults - voice = breathy and hoarse - can be surgically removed but can recur |
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organic etiologies of VD :: LARYNGEAL WEB
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- extra tissue that grows across glottis - most are congenital - incomplete web has an opening - voice may be weak if present at all |
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organic etiologies of VD :: VOCAL NODULES
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- small nodes or bumps that develop on the vocal folds - cause = vocal abuse and misuse - usually bilateral, growths at the anterior portion of the vocal folds - singers especially susceptible - can be surgically removed but will return if vocal habits stay the same - voice = weak, hoarse, breathy, raspy |
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organic etiologies of VD :: VOCAL POLYS
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- growth on the vocal folds - soft and fluid filled - cause = vocal abuse and misuse - occur unilaterally - seen most frequently in adults - surgery along with vice therapy are common treatment |
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organic etiologies of VD :: CONTACT ULCERS/GRANULOMA
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- scores on posterior end of one or both vocal folds - more common in adult males - cause = vocal abuse and misuse typically in people who talk excessively - voice = hoarse and especially low-pitched |
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Front |
Back |
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|---|---|---|
| vibration of the phonatory system (thyoarytenoid muscles) is due to what 2 facotrs? | 1. the elasticity of the tissue- myoelasticity 2. pressure changes between the vocal cords | |
| according to the myoelastic-aerodynamic theory, what is NORMAL VOCAL FOLD FIBRATION? | pleasant, healthy voice, - regular vocal fold vibration | |
| according to the myoelastic- aerodynamic theory, what is ABNORMAL VIBRATION? | raspy, hoarse voice, - irregular vocal fold vibration | |
| pitch | - frequency of vibration - measured in Hertz (Hz) - mass is thicker, the pitch is lower - more tension, pitch is higher | |
| what is fundamental frequency? | average rate of vocal fold vibration - how fast or slow they vibrate | |
| what are the gender averages? | adult male - 120 Hz adult female - 200 Hz infant/child - 300 Hz | |
| loudness | - intensity of the signal - dependent upon air pressure built up below the vocal folds - the higher the pressure, louder the voice - measured in decibels (db) | |
| quality | - what you're hearing Dependent upon: *regularity of the vibration * vocal fold adduction | |
| what are the 3 etiologies of voice disorders? | 1. organic voice disorders 2. functional voice disorders 3. psychogenic voice disorders | |
| etiology of voice disorders:: ORGANIC VOICE DISORDERS | associated with some structured or anatomic deviation in the larynx and with the vocal folds themselves | |
| etiology of voice disorders :: FUNCTIONAL VOIC DISORDERS | - due to vocal abuse and or vocal misuse - functional disorders can become organic if prolonged | |
| etiology of voice disorders :: PSYCHOGENIC VOICE DISORDERS | - due to emotional state, and perception of reality - usually no evidence of structural abnormality | |
| voice disorders of phonation | voice sounds hoarse, breathy, raspy, low-pitched, and loudness problems | |
| what are the 7 organic etiologies of voice disorders? | 1. vocal fold paralysis 2. cancer of larynx 3. vocal papilloma 4. laryngeal web 5. vocal nodules 6. vocal polyps 7. contact ulcers/granuloma | |
| organic etiologies of VD :: VOCAL FOLD PARALYSIS | - lack of nerve signal to the vocal folds 10th cranial nerve - vagus nerve - due to neurological disease or surgical mistake - voice = breathy and weak - may lead to wide open glottis known as aphonia | |
| organic etiologies of VD :: CANCER OF LARYNX | - 3-5% of cancers are laryngeal - more frequent in men than women - 4000 people undergo surgical treatment for cancer in U.S in one year - smoking is dominant factor related to laryngeal cancer - tumors on or around the vocal folds - symptoms = hoarseness, pain, difficulty swallowing | |
| organic etiologies of VD :: VOCAL PAPILLOMA | - wart-like growth(s) on the vocal folds or anywhere in the larynx - due to viral infection - greater in children than adults - voice = breathy and hoarse - can be surgically removed but can recur | |
| organic etiologies of VD :: LARYNGEAL WEB | - extra tissue that grows across glottis - most are congenital - incomplete web has an opening - voice may be weak if present at all | |
| organic etiologies of VD :: VOCAL NODULES | - small nodes or bumps that develop on the vocal folds - cause = vocal abuse and misuse - usually bilateral, growths at the anterior portion of the vocal folds - singers especially susceptible - can be surgically removed but will return if vocal habits stay the same - voice = weak, hoarse, breathy, raspy | |
| organic etiologies of VD :: VOCAL POLYS | - growth on the vocal folds - soft and fluid filled - cause = vocal abuse and misuse - occur unilaterally - seen most frequently in adults - surgery along with vice therapy are common treatment | |
| organic etiologies of VD :: CONTACT ULCERS/GRANULOMA | - scores on posterior end of one or both vocal folds - more common in adult males - cause = vocal abuse and misuse typically in people who talk excessively - voice = hoarse and especially low-pitched |
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