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263 Cards in this Set
- Front
- Back
respiration (bringing in O2 & expelling CO2), protect the airway (during swallowing; coughing), stability/pressure (fix thoracic structure for tasks requiring elevated abdominal pressure like heavy lifting, BMs, childbirth)
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Vegetative functions of the larynx include: _______________, ________________, & _________________.
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respiration (bringing in O2 & expelling CO2), protect the airway (during swallowing; coughing), stability/pressure (fix thoracic structure for tasks requiring elevated abdominal pressure like heavy lifting, BMs, childbirth) |
Vegetative functions of the larynx include: _______________, ________________, & _________________. |
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interarytenoids (transverse & oblique), lateral cricoarytenoid |
Muscles of adduction & medial compression include: _____________ & ______________. |
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how tightly the VF are adducted |
Medial compression refers to _______________. |
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Size of posterior glottal chink |
3mm or less |
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glottal chink, 3, abnormal (breathy), women |
The small gap between the vocal folds around the area of the arytenoids (posterior) is referred to as the _________ ____________. If the size of this gap is ____ mm or less, it is considered to be normal. Gaps larger than this result in _____________ voice quality. This condition is more common in __________. |
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Longitudinal force of medial compression affects ___________________. |
Pitch; it's the stretching of vocal folds |
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This muscle is involved in medial compression, but doesn't actually adduct vocal folds. |
Thyroarytenoids; has role in tensing and relaxing vocal folds |
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Thyroarytenoids |
The main muscle mass of the vocal folds. Consists of 2 bundles: thyrovocalis (medial bundle, vf tensor) and thyromuscularis (lateral bundle; glottal relaxer). |
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inhale, adduct vocal folds; alveolar/subglottal pressure |
To set VF into vibration for a sustained "ah", we first ___________ & ____________ __________. Then we begin exhalation controlling ____________________. |
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directly below the VF, greater |
Subglottal pressure refers to air pressure located ____________. This pressure is ____________ than atmospheric pressure just before exhalation. |
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0, atmospheric |
During exhalation, pressure in the oral cavity = ____, which is the same as ___________ pressure. |
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increases, medial compression; transglottal pressure difference |
During exhalation subglottal pressure _____________ to point where it overcomes __________ _____________. This causes inequality between alveolar & subglottal pressure & is referred to as the _________ ___________ ___________. |
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1 cycle of VF vibration; sound source |
Each repetition of the pattern of VFs blowing apart & being brought back together is ____________________. These movements of the VF cause surrounding air molecules to move, which creates the _________ ___________. |
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125, 250, fundamental frequency |
The average rate of VF vibration for an adult male is ________ Hz and ___________ Hz for an adult female. This value is also referred to as the ___________ _____________. |
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harmonics |
The VF vibrate at whole number multiples of the fundamental frequency, known as ______________. |
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sustained (muscles of adduction are constantly active/contracted during phonation), elasticity, Bernoulli effect |
According to myoelastic aerodynamic theory the 3 reasons the VF come back together during vibration include: _____________ muscular contraction, __________ of the VF, & _____________ ____________. |
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quickly, decrease, negative |
The Bernoulli effect states that when air passes through a narrow gap, the air moves more _________ which causes a _________ in air pressure within the narrow gap area (glottis). Pressure becomes ____________ which then sucks VF back together. This effect is demonstrated when your car is drawn in toward a tractor-trailer as it passes you OR when the shower curtain gets stuck to your leg in the shower. |
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True |
T/F: Muscular forces do not cause VF vibration. |
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aerodynamics, elasticity |
VF vibration is caused by __________ at the larynx & _________ of the VF. |
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aerodynamic forces, Bernoulli effect |
________ _________ (at the larynx) blow VF apart & this contributes to bringing them back together as a result of the __________ ___________. |
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greater, greater medial compression (& greater subglottal pressure) |
In order to generate a louder voice we contract LCA & IA with _________ force to create _________ ________ __________. |
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less, less |
In order to generate a softer voice we contract LCA & IA with _________ force to create _________ medial compression (subglottal pressure). |
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length, mass, tension |
The frequency of VF vibration depends on the complex relationship of the _______, ________, and _________ of the VF. |
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abduct, fix the arytenoids so they don't rock forward |
Posterior cricoarytenoids (PCA) contract to __________ the VF and also to ____________. |
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cover, body |
The VF are comprised of 2 layers: ________ & _________. |
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stiffness, patterns |
Contraction of different laryngeal muscles changes the relative ________ of the 2 VF layers & results in different _________ of VF vibration (e.g. folds move more as a unit for higher frequency) |
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inferior |
During VF vibration subglottal pressure causes the ________ part of the VF to come apart 1st. |
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mucosal traveling wave, inferior, inferior, superior |
During vibratory cycle of VF, the VF move in a _________ ___________ _____________ with _________ part of VF moving apart (separating) first and the _________ part preceding the _______ part when VF come back together. |
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False |
T/F: We are able to see the inferior margins separate during VF vibration by using a scope to view the VF. |
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slower, lower, greater |
Greater mass contributes to _________ VF movement. This results in a ________ frequency. Greater mass also needs _________ force to stop or start movement. |
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faster, more, faster |
High amounts of stiffness contributes to ___________ VF movement. ______ force is required to initiate movement, but the structure returns to it's original position ______ when there is greater stiffness. |
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slower, lower |
An individual with longer VF will have a _______ rate of vibration resulting in a _______ frequency. |
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increase, decreased, increased |
Within an individual: when you increase the length of the VF you ________ the rate of VF vibration. This is because you've ________ mass (over a given area) & ________ stiffness. |
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cricothyroid, thyroarytenoids |
Muscles which contribute to changing the fundamental frequency include: ____________ & _____________. |
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lengthen, increasing, decreasing, increases |
Cricothyroid acts to __________ VF thus __________ tension & _________ mass, which __________ Fo. |
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rock arytenoids forward, shorter, increase, decreases, CT (cricothyroid), PCA (posterior cricoarytenoid- tiny bit), increased, increases |
When thyroarytenoids (thyrovocalis & thyromuscularis) contract they ________ ________ __________. If they are unopposed, this contributes to making VF _______ & _______ mass, which _______ Fo. With opposition (from _____ & _____), this contributes to ______ tension, which ________ Fo. |
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perceptual, optimal, habitual |
Pitch is a __________ measure. _________ pitch refers to what you should use & ________ pitch refers to what you do use all of the time. |
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T |
T/F: Optimal pitch & habitual pitch do not always match. |
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loudness, subglottal, 2-3, 15-20 |
The perceptual measure of intensity is ________. _________ pressure increases with increased intensity. Soft speech occurs with approx _______ cm H2O pressure & loud speech occurs with approx _______ cm H2O pressure. |
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medial compression, increases, more, overcome resistance |
_________ __________ increases with increased intensity. This _________ resistance of VF, which in turn means that ______ subglottal pressure is needed to ___________ ___________. |
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LCA, IA |
Muscles that change intensity due to increasing medial compression of VF include: ________ & _________. |
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muscles of inhalation & exhalation |
Muscles that change intensity due to increasing subglottal pressure of VF include: ________ & _________. |
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suprasegmentals |
Speaking rate, pitch, intonation, stress, & rhythm are all examples of ____________. |
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The cover of the vocal folds |
Mucosa and epithelium. It's near the surface of the folds; the pink inside the mouth. Keeps mouth moist. Analogous to lips (vermilion border, epithelium) |
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The body of the vocal folds |
Deeper in the folds; vocal ligament and muscle (thyroarytenoids). Analogous to muscle underneath cover of lips
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Contraction of different laryngeal muscles changes relative __________ of the cover and body of the vocal folds. |
Stiffness |
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Higher |
The vocal folds move more as a unit for ________________ frequencies. |
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1 cycle of vocal fold vibration |
Inhale; adduct vf (medial compression); begin to exhale; subglottal pressure increases; if pressure overcomes medial compression a puff of air escapes between vfs; folds smack back together |
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During vocal fold vibration, ___________ pressure is greater than __________ pressure. |
Subglottal; supraglottal. Subglottal pressure gets built up behind vocal folds then rushes out when medial compression is overcome |
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Average rate of vibratory cycle for adult male |
125 Hz |
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Average rate of vibratory cycle for adult female |
250 Hz |
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According to the Bernoulli principle, the velocity of airflow __________ as it passes through the glottis. |
Increases |
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During vocal fold vibration, the volume of air flow is _____________. |
Constant; flow from lungs |
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Air flowing out of the lungs, through the glottis, results in ______________ pressure between the vocal folds; and because there's ______ pressure, the vocal folds suck back together. |
Negative; less |
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After exhalation and after airflow overcomes medial compression, supraglottal pressure _______________. |
Increases |
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After exhalation and after airflow overcomes medial compression, subglottal pressure ____________. |
Decreases (all of the air is leaving the lungs) |
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Muscular forces bring vocal folds together and maintain _________________________, but they do not cause _______________. |
Medial compression; vf vibration |
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Mucosal traveling wave |
Inferior to superior movement of mucosa (ALWAYS!). When vfs are blown apart, the inferior margin separates before the superior margins. When vfs come back together, the inferior margin precedes the superior margin |
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Properties of vocal folds |
Mass, length, tension |
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Physical properties of nature that affect vocal fold vibration |
Force of vf coming together; elasticity of vf, and airflow/pressure of forces. Aka, myoelastic dynamic theory |
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The _______ the mass of vf, the faster the vf vibration. |
Smaller |
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The __________ the mass, the more force required to move them. |
Larger |
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Tension refers to the __________ of the vocal folds. |
Stiffness or resistance to movement |
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High stiffness means more _______ is required to begin movement. |
Force |
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With high stiffness of vocal folds, the structure will return to its original position _____________. |
Faster |
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______________ stiffness of vocal folds means the vocal folds will vibrate faster. |
Increased or high |
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The __________ the vocal folds, the lower the frequency of vibration. |
Longer |
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As one ___________ the length of vocal folds, the _________________ increases. |
Increases, rate of vibration |
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Increased length of vocal folds results in... |
decreased mass or bulk (vf are stretched thin), increased stiffness, and therefore faster rate of vibration |
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The "myo" in the myoelastic dynamic theory refers to.... |
Muscular forces that bring the vocal folds together and maintain medial compression |
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The "elastic" in the myoelastic dynamic theory refers to... |
The stretchy or springy characteristic of vocal folds. When displaced, they snap back together and to original position |
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The "dynamic" in the myoelastic dynamic theory refers to... |
The aerodynamics and motion of the air involved in vf vibration. The aerodynamic forces blow vf apart and contribute to bringing them back together (Bernouilli effect) |
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Muscles involved in frequency change |
Cricothyroid and thryoarytenoids (thyrovocalis and thyromuscularis) |
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With opposition between the ________________ and ________________, there's increased vf tension in all directions, resulting in increased F0. |
Cricothyroid and posterior cricoarytenoid (PCA) |
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During phonation of sustained /a/, the supraglottal pressure is __________ and the subglottal pressure is at least ____________. |
0cm H2O; 2-3cm H2O |
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During sustained /a/, vocal fold vibration stops due to contraction of _______________________. |
Posterior cricoarytenoid (PCA) |
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Role of cricothyroid muscle in vf vibration |
Lengthen vocal folds, thus increasing tension and decreasing thickness. This increases the fundamental frequency (F0) |
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Role of thyroarytenoids in vf vibration |
Unopposed, they make the vocal folds shorter and bulkier (more mass), thus decreasing F0 |
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Vocal folds cause ________________ to airflow from lungs. |
Resistance |
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If laryngeal resistance increases and you want to maintain the amount of air flow coming from lungs, you need to __________ alveolar pressure. |
Increase |
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If laryngeal resistance decreases and the alveolar pressure stays constant, what happens to the airflow? |
It decreases |
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Ohm's Law |
Airflow = Pressure/Resistance |
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Muscle Tension Dysphonia |
Involves increased laryngeal resistance. If the alveolar pressure is constant, the flow decreases and the person cannot overcome medial compression. Lots of alveolar pressure is needed. When pt's begin to speak, their muscles are too tense and they sound really tight or throttled. Air flow is not normal. The pt needs to coordinate speech with their breathing |
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Vocal fold paralysis |
Usually just one vf is flaccid, doing nothing, so the vf are too flexible and moving too much. This causes decreased laryngeal resistance. If alveolar pressure is constant, flow will increase and the person will sound very breathy because so much air is flowing out of lungs. To keep the flow constant, the person needs to decreased alveolar pressure (use less air from lungs) |
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Subglottal pressure is directly related to amount of _____________________. |
Medial compression which is what keeps the air from flowing out of subglottal area into supraglottal area. If poor medial compression, air leaks and the subglottal pressure decreases |
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Subglottal pressure (Psg) must be at least ______ cm H2O great than atmospheric pressure (0cmH2O) for folds to vibrate. |
2-3 |
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Normal conversational loudness |
7cmH2O |
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For a louder voice, you need more __________; thus ____________________ increases for greater requirement of subglottal pressure. |
Airflow; medial compression |
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For a softer voice, you need _______ airflow and ____________ medial compression for a lower requirement of __________. |
Less; decreased; subglottal pressure |
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If subglottal pressure equals supraglottal pressure, what's happening? |
Vocal fold vibration stops; just breathing |
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Subglottal pressure ___________ with increasing intensity. |
Increases |
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Medial compression ___________ with increasing intensity. |
Increases |
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Muscles that change intensity of voice |
Lateral cricoarytenoids (LCA) and interarytenoids IA (trasnverse and oblique). |
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Why do LCA and IA change intensity of voice? |
They increase medial compression of vocal folds; they adduct vocal folds |
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We must __________ and ________ voice and speech to determine where a disorder is occurring. |
Measure and visualize |
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Types of measurements of voice and speech |
Aerodynamic and acoustic |
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Means by which to visualize voice and speech |
Endoscopy, stroboscope, high speed, slow motion |
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WHat do aerodynamic measurements measure? |
Airflow, air pressure, airway resistance |
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What does airflow refer to? |
Amount of air flowing through a particular area; air coming from the respiratory tract |
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What does air pressure refer to? |
Amount of force exerted on an area; alveolar, supraglottal, subglottal |
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What does airway resistance refer to? |
Amount of opposition to airflow; resistance from respiratory tract |
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We use _______________ to help determine how to measure aerodynamics of voice and speech. |
Ohm's law |
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If we want to increase air pressure, ________ will increase. |
Airflow |
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If we want to decrease air pressure, airflow will __________. |
Decrease |
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If we want to increase airway resistance, airflow will ____________. |
Decrease |
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If we want to decrease airway resistance, airflow will ______________. |
Increase |
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If we want to increase airway resistance, but want to keep airflow equal, air pressure will _____________. |
Increase |
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If we want to increase laryngeal resistance and maintain air pressure, we will ________ airflow. |
Decrease |
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To measure airflow during speech, we must measure how _________ is the airflow in relation to amount of ___________. |
Efficient, time |
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Formula to measure efficiency of speech airflow |
Flow = ΔVolume / Δ time |
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Average normal airflow for sustained phonation |
167 mL/sec |
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Range of normal airflow for sustained phonation |
75-270 mL/sec |
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Airflow with breathy voice |
300 mL/sec |
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Laryngeal resistance = (form of Ohm's law) |
subglottal pressure / airflow |
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Phonatory Aerodynamic System (PAS) |
Measures speech indirectly via airflow, subglottal pressure, laryngeal resistance |
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PAS measures intraoral pressure in ____________________ to estimate alveolar/subglottal pressure |
Voiceless stop gap |
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Why does the PAS measure pressure in a voiceless stop gap? |
The release burst indicates what the pressure is behind the glottis |
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Acoustic Measurements |
Fundamental frequency, intensity, amount of noise, cepstral measurements |
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How we measure acoustic parameters of voice and speech |
Praat, Visipitch, MDVP (multidimensional voice program) |
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To measure acoustic parameters F0 and intensity in Praat, we look at the ____________________ and ____________________. |
Bottom formant; darkness of bands |
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When measuring acoustic characteristics of "noise" in voice and speech, the qualitative aspects include _________________________. |
Aperiodic vs periodic noise |
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Quantitative measure of noise perturbation in voice (perception of abnormal voice quality, i.e., hoarseness) |
Jitter, shimmer, noise-to-harmonic ratio (NHR) |
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Jitter |
Deviation from true periodicity of presumed periodic signal; measures aperiodicity |
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Jitter measures _____________________ change in fundamental frequency. |
Cycle to cycle |
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When there's lots of deviation from presumed periodic, the jitter value is _____________. |
High |
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Normal range for jitter values |
0.5 to 1.0% variation |
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Shimmer |
Relates to the amplitude variation of the sound wave |
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____________ is correlated with amount of noise in the voice or breathiness. |
Shimmer |
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Shimmer of greater than ________ is pathological. |
3% |
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To maintain amplitude, _______ and _________ should remain the same. |
Pitch and intensity (volume) |
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Noise to harmonics ratio (NHR) |
Ratio between the periodic and aperiodic components of voice and speech |
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Voice quality with low NHR will sound _______ and _____________. |
Weak and breathy |
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If noise to harmonics ratio is less than __________, voice will sound pathological. |
7dB |
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________ and ___________ measurements are not the most reliable or valid. |
Jitter, shimmer |
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Jitter and shimmer measurements are ______-based and rely on _____________ to determine measurements. |
Time; vibratory cycles |
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A more reliable and valid measurement of voice and speech is _________________. |
Cepstral Analysis |
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Cepstral analysis |
Newer analysis; not based on time but on amplitude of signal and noise in signal. Uses spectrums, logarithm transformations, and Fourier analysis to calculate. |
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Types of laryngeal imaging |
Flexible nasal endoscopy; rigid transoral endoscopy; video stroboscopy; high speed laryngoscopy |
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Nasal endoscopy |
Spaghetti-like tube with camera on end. Fiber-optics with controller to slip tube through nose down into laryngeal inlet to see larynx for a bird's eye view |
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Goal of nasal endoscopy |
Visualization of vocal fold (muscle) movement; medial compression |
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Rigid Transoral endoscopy |
Rigid scope w/ camera on end goes into mouth. Clinician holds pt's tongue, puts rod to back of mouth w/ stroboscope camera on end to look down at larynx |
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Vocal folds move too fast for human eye to see, at about ________________Hz. |
~100-300 times/sec |
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Stroboscopy |
Specialized instrument/type of light to examine rapid vf vibration. Allows slow motion viewing and analysis of vf vibration. Flashes light at fixed intervals (strobe light) which creates an illusion of several successive vibratory cycles (glottic wave). Illusion of slow motion. |
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Stroboscope must flash at different __________ of vibration or the vf will appear to be motionless. |
Phase |
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Stroboscope is used to evaluate influence of __________, ____________, and ___________ on vocal fold vibration. |
Length, mass, tension |
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Stroboscope evaluates __________, ______________, and ___________ of vocal fold vibration. |
Symmetry, periodicity, amplitude |
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Symmetry of vf vibration refers to.... |
Similarity in movement between the two vocal folds |
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Periodicity of vocal fold vibration refers to... |
Regularity of vibratory cycles |
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Amplitude of vocal fold vibration refers to... |
Extent of movement of vocal folds; how much they vibrate |
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High speed stroboscopy |
Freeze frames components and plays back in slow motion. Actual slow motion |
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current, voltage/resistance, air flow, alveolar pressure/airway resistance |
Ohm's law states that _______= _______/_________. In terms of VF resistance this implies that ___________=__________/___________. |
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alveolar pressure |
If laryngeal resistance increases you must increase _____________ in order to maintain air flow. |
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medial compression |
Laryngeal resistance is caused by ________________. |
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decrease |
If laryngeal resistance increases and alveolar pressure stays constant, airflow will ________________. |
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50 |
If air flow=5 and laryngeal resistance=10, what is the alveolar pressure? |
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5 |
If alveolar pressure is 75 and resistance is 15, what is the air flow? |
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2-3, medial compression, transglottal pressure difference |
Subglottal pressure must be, at a minimum, ____ cm H2O greater than atmospheric pressure (which is 0) for the VF to vibrate (overcome _________ _________). This is known as the ____________ __________ __________. |
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VF vibration stops |
If subglottal pressure= supraglottal pressure, what happens? |
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there is no transglottal pressure difference, VF are abducted |
VF will stop vibrating if: _______________ OR _______________. |
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increase, decrease, more, constant |
If a patient has spasmodic dysphonia, laryngeal resistance will ______________. This means that air flow will _________ so _____ alveolar pressure is needed to keep air flow _________. |
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decrease, increase, less, breathy |
If a patient has VF paralysis, laryngeal resistance will ________. This means that air flow will _________ so _____ alveolar pressure is needed to keep the air flow constant. This patient will have a _________ voice quality. |
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active, PCA, abduction |
________ cessation occurs when these muscles contract during voiced consonants: _____________ This results in _____________. |
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passive, stops, intraoral, equal to, during stop gap, VF vibration stops since there is no transglottal pressure difference |
________ cessation is related to aerodynamics (not muscle contraction). This occurs during VL consonants, especially ________, when supraglottal (aka: _________) pressure may end up ________ subglottal pressure. When would this occur & why? |
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they are less, burst release will be less substantial |
If there is incomplete closure (constriction) during a stop, what happens to the pressure peaks? why? |
|
pinch patient's nose (to prevent air leakage through the velopharyngeal port) |
What can be done to increase intraoral pressure when measuring dynamic intraoral air pressure? |
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laryngeal resistance, source, stop gap, subglottal pressure. |
Dynamic intraoral pressure measurements are useful to determine _______________. This is a _________ characteristic. We can do this by measuring intraoral pressure during the ______ ________ in order to estimate ______________. |
|
laryngeal resistance, respiratory system, lip closure, velopharyngeal port closure |
Intraoral pressure can be used to determine information about both source & filter characteristics including: __________, _________ __________, ________ ____________ & ______________ _______ _________. |
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intraoral pressure, less (2-3cm H20) |
When reading the intraoral pressure measurements: if the the only problem is with the respiratory system we will see that _______________ is _______. |
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maximum intraoral air pressure, 5cm for 5s |
2 nonspeech methods that can be used to take air pressure measurements include: _____________________. |
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lip closure & velopharyngeal port are working correctly |
If we use nonspeech tasks to measure air pressure, what must we assume about the patient? |
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a tracheal puncture |
A direct measure that can be used to assess subglottal pressure is ____________. |
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dynamic intraoral pressure task |
An indirect measure that can be used to assess subglottal pressure is _________. |
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air pressure, digital signal on computer, airflow transducer, microphone, pressure transducer |
The function of a pressure transducer is to transform __________ into ____________. The transducer is comprised of 3 components: _________, _________, & _________. |
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laryngeal resistance, airflow, alveolar pressure |
Because of Ohm's law we can solve for __________ after determining the values for __________ and __________ via pressure transducer measurements. |
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abducted, increase, closed, 7, 0 |
During a VL stop /p/ the VF are ________. This causes an __________ in pressure in the oral cavity b/c the lips are _________. The intraoral pressure becomes ____ cm H20 before the release burst. After the release burst the pressure returns to ___ cm H20. |
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airflow |
__________ is defined as the movement of a quantity of gas through a given area in a unit of time. |
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mL/s |
airflow is measured in ______. |
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pneumotachograph, digital signal on computer |
A ________ transducer converts airflow into ________________. |
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Using stroboscopy, SLPs evaluate ___________, __________, and _____________. |
Symmetry, periodicity, amplitude |
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3 components of vocal fold vibration include: |
Muscle contraction, vocal fold elasticity, aerodynamics |
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What needs to be done for an individual to increase F0? |
Increase length, decrease mass, increase tension |
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What needs to be done for an individual to decrease F0? |
Decrease length, increase mass, decrease tension |
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Velopharyngeal incompetence may sound _________________. |
Hypernasal |
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If there is velopharyngeal incompetence, __________ won't build up. To check VP incompetence, one can do what? |
Pressure. Pinch the nose, if the pressure begins to build, there is VP incompetence, allowing air to leak into nasal cavity which prevents air pressure build up |
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During a sustained /a/, intraoral pressure is ____________ in relation to atmospheric pressure? |
Equal (at 0 cm H2O) |
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To measure subglottal pressure, use _________________ (type of speech sound) for an indirect measure. |
Voiceless stop gap. |
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During a voiceless stop gap, measure ____________ during vowel and measure ________________ during (voiceless) stop gap. |
Airflow; intraoral pressure |
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If pt has muscle tension dysphonia, they may have ______ airflow, around 70mL/sec. Average airflow ranges from __________________mL/sec. |
Low; 150-170 |
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During muscle tension dysphonia... |
Not enough air is coming out, phonation duration is longer, there's too much medial compression, intraoral pressure = 0cmH2O |
|
If one vocal fold is paralyzed... |
More air is coming out (250-300mL/s), phonation duration will be shorter (run out of breath quicker) |
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During production of maximally sustained phonation, a pt with vocal fold paralysis (but normal respiratory system) will have a ______________ phonation duration. |
Shorter (air will be used up more quickly) |
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During voiced stop consonant, vocal folds may stop vibrating due to muscle contraction or no transglottal pressure difference? |
No transglottal pressure difference |
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During voiceless stop consonant, vocal folds stop vibrating due to muscle contraction or no transglottal pressure difference? |
Muscle contraction (abduction) |
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When vf vibrate irregularly, the periodicity of vibration is not as regular as it should be. This can be quantified by observing the _____________. |
Jitter |
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When vfs vibrate irregularly, the amplitude of vibration (how much vfs are displaced when they vibrate) is not regular. This can be quantified by observing the ____________. |
Shimmer |
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Anytime there's a mass on vfs, vibration will _________________________. |
Be irregular (increased mass) |
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Average airflow is measured during which part of speech? |
Exhalation |
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Airflow of 100mL/s for 10 secs = ? |
1000mL/s |
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We measure airflow and intraoral pressure to measure what? |
Resistance |
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Intraoral pressure equals _______ cmH2O during /a/. |
0 |
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We use voiceless stops to measure intraoral pressure so that the vocal folds are ______________. |
Abducted |
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Measure maximum _________ during ___________________ which gives us an estimate of Psg during sustained vowel. |
Intraoral pressure; voiceless stop gap |
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Airflow equals ______ during stop gap. |
0 cmH2O |
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There is a spike in _____________ during burst release of voiceless stop. |
Airflow |
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During /papapa/, the airflow is normal, at 150 mL/s during _____________. |
The vowel (/a/) |
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U-tube manometer |
Measures air pressure. Blow into one end, the air displaces the fluid a certain # of cm's. |
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Air flow should be zero during _______________.
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Stop gap
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If there is spirintization, airflow will be _________ than zero.
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Greater
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There will be ________ pressure during stop gap if vp port doesn't close completely.
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Low
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If there is air coming out through the nasal cavity, we may hear noise that sounds like _____________.
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Frication
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Muscles that elevate the tongue
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Palatoglossus and styloglossus (both extrinsic tongue muscles)
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Palatoglossus muscle is affected by which cranial nerve?
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CN X, vagus; pharyngeal branch
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Styloglossus muscle is affected by which cranial nerve?
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CNXII, hypoglossal
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Muscles that open/close vp port
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Superior constrictor (muscle of pharynx) and levator veli palatini (muscle of soft palate)
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Superior constrictor muscle is affected by which cranial nerve?
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CN IX, glossopharyngeal
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Levator veli palatini muscle is affected by which cranial nerve?
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CN X, vagus; pharyngeal branch (superior branch)
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What non speech task can estimate how the respirtaory system is working?
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5cm H2O for 5 seconds
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_____________ is the minimum for being able to communicate
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5cm H2O for 5 sec
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5cm H2O for 5 s can be measured using what methods?
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U-tube manometer, pressure transducer, or have pt blow large bubbles into a glass with a straw for 5 sec
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When checking speech capabilities using pressure transducer/u tube manomter, if the value is low, it could indicate a problem with what?
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respiratory system, vp port, nasal cavity, lips, oral cavity, larynx, articulators
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If you suspect air is leaking through pt's lips, have pt produce ___________, watch/listen for _____________, and observe how strong the ________ is.
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Bilabial stop; spirintization; burst release
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Flow = ? / ?
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ΔVolume / Δtime
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Normal airflow range
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150-170 mL/s
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Breathy airflow
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250mL/s
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Volume = ? X ?
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Flow X time
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Airflow for a sustained /a/ is 200mL/s, pt sustains phonation for 10 sec. What is the volume?
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Volume = flow X time:v= 200mL/sec X 10 secv= 2000 mL
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A pt uses (breathes out/expels) 2L of air during sustained phonation which lasts for 10 sec. What is average airlfow?
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Volume = flow X time2L = f X 10 sec2L -> 2000mL2000mL/10 sec200mL/sec = flow
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Lots of ______________ allows less air out, so one can hold phonation longer.
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Medial compression
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Device that measures airflow, includes mask that sits over mouth/nose
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Pneumotachograph
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There should be ___________ inhalation/exhalation during swallowing.
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No
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Respibands
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Strain gauge system: 1 around chest wall, 1 around abdomen. Measures charactersitics of respiration without encumbering oral cavity
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Can use _______ in nose to see if pt is taking air in or holding breath during swallowing.
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Canula
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Drawbacks of using canula to check breathing during swallowing?
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No seal for the nares
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"Speech is movement made audible." What moves during speech?
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Respiratory system, larynx, ribs, lungs, vocal folds, vp port, oral cavity
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At resting position, the velum is __________ and th vp port is open.
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Lowered
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To close the vp port, you need _____________.
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Muscle contraction
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If you put a mirror under the nares and it fogs during a totally oral sound, it indicates what?
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There's a leakage through the vp port
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Nasometer measures ________________ by placing a plate under the nose with a mic on top and underneath.
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Nasalance score (acoustic energy)
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Using a nasometer, a totally oral sound will reach which mic?
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The bottom or oral mic
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Using a nasometer, if there is noise during a totally oral sound or if it's a nasal sound, it will reach which mic?
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The top or nasal mic
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Loud voice increases the ________ and ___________.
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Intensity; pressure
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Soft voice _________ intensity, _________ pressure.
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Decreases; decreases
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Breathy voice increases __________.
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Airflow
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Strained voice decreases ________.
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Airflow
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If a child has a severe hearing loss but normal speech tract, their speech is very ___________ because they can't hear to know/learn to close the _________.
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Hypernasal; vp port
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What tool can help a child with a severe hearing loss but normal speech tract measure and remedy their speech?
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Nasometer
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Electropalatography (EPG)
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Plastic palate w/ sensors on it
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Why is EPG not a common tool?
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It's very expensive because it must be custom made to each individual
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How does EPG work?
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Palate w/ sensors on it is placed on pt's palate, pt can look at a screen and see when tongue makes contact w/ palate. gives feedback about speech and tongue placement when tongue is contacting palate.
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When you release artciulatory constriction for normal stop consonatn, the intraoral pressure ____________ and airflow _________.
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Decreases, increases
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Measuring airflow, if there's a leak, it could be in ___________ or ____________, this can be checked by pinching the __________.
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Nose/vp port/nasal cavity; lips/mouth/oral cavity, nose/nares
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VisiPitch
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Voice measure, now computerized, displays time on X axis, and f0 or dB on yaxis
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VisiPitch allows SLPs to look at a pt's speech characteristics, such as ________, ___________, and/or _________.
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Pitch (f0), loudness (dB), duration (time)
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Suprasegmental
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Element of speech, namely prosody which involves the rhythm, stress, and intonation of speech.
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If _______________ are not used during speech, listeners may have trouble understanding the important cues of speech indicating question, end of sentence, etc.
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Suprasegmentals
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Electromyography (EMG)
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Records electrical activity on muscles when they contract
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EMG helps to analze what?
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Muscle activity for speech/swallowing and if the muscles are functioning appropriately
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SLPs train pt's to raise larynx for longer duration until bolus of food can go down, how can EMG help during this training?
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Electrodes on the msucles from the bottom of the mandible down to the larynx allow analysis of muscle function
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Components of EMG
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Surface electrodes, needle electrodes, signal processing (linear envelope of acitivty showing amp (mV) vs. time).
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IOPI (Iowa Oral Pressure Instrument)
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Handheld device with air-filled bulb attached to pressure sensor. Put bulb in oral cavity, tell pt to push up w/ tongue on bulb
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Using the IOPI, what does the SLP want to measure while the pt pushes up w/ tongue on the bulb?
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Force; can be tongue force or lip force (depending on what the goal is)
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Electromagnetic Articulography (EMA)
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Reseach-based toold used to undestand movement of speech structures inside the oral cavity using a cube with magnetic field and putting sensors on pt's speech structures. Shows movement trajectories; gives feedback to help w/ speech production
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