voice disorders Flashcards
what are the extrinsic laryngeal muscles of larynx
- supra hyoid
- infahyoid
(pg. 344)
what are the supra hyoid muscles
- mylohyoid
- geniohyoid
- anterior belly of the digastric
- hyoglossus
- styloglossus
(pg. 344)
what are the infra hyoid muscles?
- thyrohyoid
- sternohyoid
- sternoghyroid
- omohyoid
- inferior constrictor
(pg. 344)
what are the abductor muscle(s) of the larynx
- posterior cricoarytenoid
pg. 344
what are the adductor muscles of the larynx
- lateral cricoarytenoids
- interarytenoids (oblique and transverse)
(pg. 344)
what are the tensor muscles of the larynx
- cricoarytenoids (pars recta and pars oblique)
- thyroarytenoids
- medial/internal (thyrovocalis)
- lateral/external (thyromuscularis)
what are the layers of the vocal folds?
- cover (squamous epithelium, superficial or lamina propria)
- transition (form the vocal ligament)
- body ( thyroarytenoid muscle)
(pg. 344)
what are the 3 branches of the vagus (X) nerve?
- pharyngeal
- superior laryngeal
- recurrent laryngeal nerve
(pg. 344)
a. pharyngeal nerve
b. superior laryngeal nerve
c. recurrent laryngeal nerve
-innervates soft palate via pharyngal plexus
a. pharyngeal nerve (pg.345)
a. pharyngeal nerve
b. superior laryngeal nerve
c. recurrent laryngeal nerve
- interanal branch: sensory to glottal area and above
- external branch: motor to cricothyroid muscle
b. superior laryngeal nerve (pg.345)
a. pharyngeal nerve
b. superior laryngeal nerve
c. recurrent laryngeal nerve
- sensory to glottal area and infra glottal area
- motor to all intrinsic laryngeal muscles except cricothyroid
- right and left branches differ in length
- left branch is longer because it wraps around the aorta before coursing upward
- right branch wraps around subclavian artery before entering larynx
- enters larynx though the thyroid gland
c. recurrent laryngeal nerve (pg.345)
a. inhalation
b. exhalation
c. vital capacity
d. relaxation pressure
e. checking action
-an active process resulting primarily from acton of diaphragm and external intercostal muscles
a. inhalation (pg.345)
a. inhalation
b. exhalation
c. vital capacity
d. relaxation pressure
e. checking action
- passive during quiet breathing
- is active during breathing for speech
b. exhalation (pg.345)
a. inhalation
b. exhalation
c. vital capacity
d. relaxation pressure
e. checking action
-amount of air available for use when lungs are inflated maximally
c. vital capacity (pg.345)
a. inhalation
b. exhalation
c. vital capacity
d. relaxation pressure
e. resting expiratory level
f. checking action
- pressure generated entirely by passive forces, pulling towards equliibrium
- equals zero at resting expiratory level; increases when lung volume is above or below REL
- expiratory pressure is positive
- inspiratory pressure is negative
d. relaxation pressure (pg.345)
a. inhalation
b. exhalation
c. vital capacity
d. relaxation pressure
e. resting expiratory level
f. checking action
- the volume level in lungs at the end of exhalation in tidal breathing, when no respiratory muscles are active
- volume level where the forces of contraction of the lungs are balanced by the forces of expansion of the chest wall
e. resting expiratory level (pg.345)
a. inhalation
b. exhalation
c. vital capacity
d. relaxation pressure
e. resting expiratory level
f. checking action
- activity of inhalators muscles to control passive forces of exhalation in order to maintain steady subglottic pressure and airflow needed for speech production
- these inhalatory muscles, primarily the external intercostals, stay activated until relaxation pressure equals subglottic pressure
f. checking action (pg.345 )
the average subglottic pressure during speech is ______ in conversational voice
- 4-6 cm H20 (pg.345)
relaxation pressure and subglottic pressure are equal at about ____% vital capacity
55 (pg.345)
true/false: vocal folds open for inhalation and to produce voiceless sounds due to action of the PCAs
true (pg.345 )
true/false: during voicing/vibration, vocal folds open due to the buildup of air below the vocal folds sufficient to overcome the resistance of the folds and push the tissue upward and apart
true (pg.345)
vocal folds adduct due to the action of the ___ and ____
lateral cricoarytneoids and the interarytenoids (pg.346)
true/false: vocal fold vibration occurs when the vocal folds are positioned in the adducted position and airflow from the lungs causes repeated opening and closing
true (pg.346)
a. normal voice
b. breathy voice
c. whisper
- regular bursts of air through the glottal opening
- full opening and closing of vocal folds with vibration
a. normal voice (pg.346)
a. normal voice
b. breathy voice
c. whisper
- noise puls air burst
- vocal folds partly open and partly closed; closed portion vibrates
b. breathy voice (pg. 346)
a. normal voice
b. breathy voice
c. whisper
- noisy frication airflow
- narrow vocal fold opening, no vibration
c. whisper (pg.346)
a. voiceless
b. strained (creaky)
c. glottal fry
d. glottal stop
- noiseless airflow
- vocal folds open, no vibration
a. voiceless (pg. 346)
a. voiceless
b. strained (creaky)
c. glottal fry
d. glottal stop
- irregular bursts of air through vibrating vocal folds
- full vocal folds opening and closing with increased medial compression
b. strained (creaky) (pg. 346)
a. voiceless
b. strained (creaky)
c. glottal fry
d. glottal stop
- low frequency irregular air bursts
- only a small portion of vocal fold margin opens and closes
c. glottal fry (pg.346)
a. voiceless
b. strained (creaky)
c. glottal fry
d. glottal stop
- no vibration at all; stoppage of airflow
- folds fully shut with no vibration
d. glottal stop (pg.346)
____ is a series of ranges of consecutively phonated frequencies that can be produced with nearly identical voice quality and that ordinary do not overlap
register (pg.346)
a. pulse register
b. modal register
c. loft register
- lowest portion of one’s phonation range
- vocal folds are relaxed and vibrate with minimal subglottic pressure
- frequency range is about 30-80Hz
- closed phase is greatest protion of the glottal cycle
- sometimes heard as glottal fry
a. pulse register (pg.346)
a. pulse register
b. modal register
c. loft register
- the largest portion of one’s frequency range, comprise about 1.5 octave
- voice quality has the greatest timber and flexibility
b. modal register (pg.346)
a. pulse register
b. modal register
c. loft register
- also known as falsetto, the highest portion of one’s range
- vocalfolds are stretched and tense, vibrating at their medial edges
- airflow rate is increased
c. loft (pg. 346)
a. jitter
b. shimmer
- the average cycle-to-cycle change in frequency from one cycle to the next
- also known as pitch perturbation
a. jitter (pg.347)
a. jitter
b. shimmer
-average cycle-to-cycle change in amplitude from one cycle to the next
b. shimmer (pg.347)
a. harmonics-to-noise ratio
b. long-term average spectrum
c. soft phonation index
d. voice turbulence index
-quantifies the amount of additive noise in the voice signal
a. harmonics-to-noise ratio (pg.347)
a. harmonics-to-noise ratio
b. long-term average spectrum
c. soft phonation index
d. voice turbulence index
-describes the spectral characteristics of speech by averaging the contribution of individual speech sounds
b. long-term average spectrum (pg.347)
a. harmonics-to-noise ratio
b. long-term average spectrum
c. soft phonation index
d. voice turbulence index
-acoustic analysis parameter that provides indication of vocal fold adduction and glottal closure during phonation
c. soft phonation index (pg.347)
a. harmonics-to-noise ratio
b. long-term average spectrum
c. soft phonation index
d. voice turbulence index
-provides a quantitative index of breathiness
d. voice turbulence index (pg.347)
a. airflow rate
b. subglottic pressure
c. glottal resistance
d. maximum phonation time
- the average rate of airflow through the vocal tract during phonation
- associated with the efficiency of phonation
a. airflow rate (pg.347)
a. airflow rate
b. subglottic pressure
c. glottal resistance
d. maximum phonation time
- pressure measured below the vocal folds usually during vibration
- related to degree of medial compression of the closed vocal folds
- associated with the intensity of voice produced
b. subglottic pressure (pg.347)
a. airflow rate
b. subglottic pressure
c. glottal resistance
d. maximum phonation time
- the ratio of subglottal pressure to airflow rate
- measured in cm H20/LPS
- associated with intensity at low and middle frequencies
c. glottal resistance (pg.347)
a. airflow rate
b. subglottic pressure
c. glottal resistance
d. maximum phonation time
- is the maximum time a subject can produce a vowel following a deep inhalation
- may reflect phonation type in addition to characteristics of breath support for speech
- typically improves with practice and/or training
d. maximum phonation time (pg.347)
quality of voice is that perceived by listeners as distinguished from pitch and loudness and sometimes called _______
timbre (pg.347)
stroboscopic and related visual measures
a. symmetry
b. amplitude
c. periodicity
d. closed pattern
-refers to whether the left and right vocal folds move symmetrically during vibration
a.symmetry (pg.347)
stroboscopic and related visual measures
a. symmetry
b. amplitude
c. periodicity
d. closed pattern
-the extent of horizontal excursion of the vocal folds during vibration
b. amplitude (pg.347)
stroboscopic and related visual measures
a. symmetry
b. amplitude
c. periodicity
d. closed pattern
-the regularity of successive cycles of vibration
c. peridoicity (pg.347)
stroboscopic and related visual measures
a. symmetry
b. amplitude
c. periodicity
d. closed pattern
-the portion of the vocal folds and any space between them during the most closed phase of vibration
d. closed pattern (pg.347)
can be described as complete, incomplete, irregular, hour -glass-shaped, with an anterior to posterior chink
stroboscopic and related visual measures
a. mucosal wave
b. vocal fold edge
- corresponds to the movement of the superior surface, or cover, of the vocal fold laterally during vibration
- travels about half the width of the vocal fold at typical pitch and loudness
a. mucosal wave (pg.348)
stroboscopic and related visual measures
a. mucosal wave
b. vocal fold edge
-can be described as smooth and even, irregular with an excrescence, etc
b. vocal fold edge (pg.348)
larynx forms from branchial arches ____,____, and _____ and all structures are present at ___ months gestation
4,5,6 and 3 (pg.348)
the vocal ligament is present by age ____ and develops to about age ____
2, 16 (pg.348)
what is ADMET?
aerodynamic myoelastic theory of phonation (pg.348)
what are the 5 mechanisms involved in one cycle of glottal vibration that results in vocal fold vibration in ADMET
- the adductor muscles (LCA and IA) close the vocal folds while the tenors (CT and TA) stiffen the vocal folds to the desired fundamental frequency
- as person begins to exhale, sub glottal pressure builds beneath the vocal folds. pressure builds until it is great enough to overcome the resistance of the vocal fold and push the folds open
- a glottal pulse is released creating an acoustic shock wave traveling through the vocal folds
- once the folds have been blown open forces of the elastic recoil and the bernoulli effect help to bring the folds back to there original position
- the opening and closing of the vocal folds during phonation is the result of the aerodynamic and muscular foyers indicated above
(pg. 348-349)
what does the cover-body theory of vocal fold vibration state?
- the vocal fold cover moves independently of the body
- the TA muscle (body) participates very little in vibratory movement
- movement of the vocal ligament falls in between the significant movement of the cover and the minimal movement of the body
- this theory suggests that anything that interferes with the movement of the cover will affect the resulting voice quality
(pg. 349)
what are common disorders associated with phono trauma?
- vocal nodule
- polyps
- polypoid degeneration (reinke’s edema)
(pg. 349)
a. vocal nodule
b. polyps
c. polypoid degeneration
- form from long periods of phonotrauma
- results in increased intercellular fluid and a buildup
- abnormal growth form at the junction of the anterior 1/3 posterior 2/3 of the vocal fold (i.e. the middle of the membranous vocal fold)
a. vocal nodule (pg.349)