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Comd 5070 exam 2 study guideb Questions & Answers 100% Correct!!

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  • Comd 5070 e
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What is another name for volume velocity - ANSWER-Air flow How do you calculate the average air flow (volume velocity) - ANSWER-volume/time What is a u-tube manometer - ANSWER-A tube in the shape of a 'U' that is used to measure pressure and can be used to calibrate electronic equipment to me...

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  • August 21, 2024
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  • Comd 5070 e
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Comd 5070 exam 2 study
guideb Questions & Answers
100% Correct!!
What is another name for volume velocity - ANSWER-Air flow



How do you calculate the average air flow (volume velocity) - ANSWER-volume/time



What is a u-tube manometer - ANSWER-A tube in the shape of a 'U' that is used to measure pressure
and can be used to calibrate electronic equipment to measure pressure.



How does a u-tube manometer work? - ANSWER-Pressure will displace the water and the
displacement can then be measured by measuring the difference in height

What is subglottal pressure - ANSWER-Pressure that the lungs provide that go up the trachea to the
larynx.



What is subglottal pressure abbreviated as? - ANSWER--P subscript s

-P subscript sub



Where is subglottal pressure measured? - ANSWER-directly below the larynx



How much subglottal pressure is enough for speaking? - ANSWER-normal speech: 5-7 cmH2O

very loud speech: 15-20 cmH2O



What is phonation threshold pressure - ANSWER-The pressure needed from the lungs to just get the
vocal folds to oscillate to produce the softest voice



What influences phonation threshold pressure - ANSWER--Dehydration

-vocal fatigue

, How does dehydration influence phonation threshold pressure - ANSWER-if vocal folds are dried out,
they are less flexible and requires an increase in the amount of pressure needed to make them move



How does vocal fatigue influence phonation threshold pressure - ANSWER-Vocal folds become
slightly swollen, which requires more pressure to get them to oscillate.



What influences phonation threshold pressure in clinical voice disorders - ANSWER--folds are looser
for easy onsets (less pressure needed)

-Folds are stiffer for harsh onsets (more pressure is needed)

-phonation threshold pressure will be higher for abrupt starts

- vocal fold lesions increase mass of vocal folds

-PTP is higher in many pathologies



T or F: Many lesions stiffen the mucosa lining of the vocal folds - ANSWER-True



pressure, flow and resistance equation - ANSWER-pressure=flow x resistance

resistance = pressure/flow



T or F: you can measure Psub and estimate Flow - ANSWER-Falsee...you can estimate Psub and
measure flow



What will the oral air pressure be like when producing a vowel? - ANSWER-the same as atmospheric
pressure around person's head.



If measuring pressure on lung side of a fricative constriction /s/ what would pressure be like? -
ANSWER-much higher than atmospheric pressure.



If you were to produce a stop consonant, like a /t/ or a /d/, pressure would be higher or lower than a
fricative? - ANSWER-higher than a fricative



Ohm's law states: - ANSWER-Pressure, flow, and resistance are all linear related to one another

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