Comd 5070 exam 2 study guide Questions and Answers 100% Verified
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Module
Comd 5070
Institution
Comd 5070
If you were to produce a stop consonant, like a /t/ or a /d/, pressure would be higher or lower than a
fricative? - higher than a fricative
What will the oral air pressure be like when producing a vowel? - the same as atmospheric
pressure around person's head.
How do you calculate the average a...
Comd 5070 exam 2 study guide
If you were to produce a stop consonant, like a /t/ or a /d/, pressure would be higher or lower than a
fricative? - higher than a fricative
What will the oral air pressure be like when producing a vowel? - the same as atmospheric
pressure around person's head.
How do you calculate the average air flow (volume velocity) - volume/time
What is a u-tube manometer - 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? - Pressure will displace the water and the displacement can
then be measured by measuring the difference in height
What is a u-tube manometer best used for? - Calibrations of equipment and measuring static
pressure
What are the limitations of a manometer - Measuring speech production where the pressure goes
up and down rapidly.
How do the rib cage and abdomen move as we speak - -inhale: rib cage and abdomen expand
-exhale: rib cage and abdomen contract
What is subglottal pressure - Pressure that the lungs provide that go up the trachea to the larynx.
What is subglottal pressure abbreviated as? - -P subscript s
-P subscript sub
, Where is subglottal pressure measured? - directly below the larynx
How much subglottal pressure is enough for speaking? - normal speech: 5-7 cmH2O
very loud speech: 15-20 cmH2O
What is phonation threshold pressure - The pressure needed from the lungs to just get the vocal
folds to oscillate to produce the softest voice
What influences phonation threshold pressure - -Dehydration
-vocal fatigue
How does dehydration influence phonation threshold pressure - 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 - Vocal folds become slightly
swollen, which requires more pressure to get them to oscillate.
What influences phonation threshold pressure in clinical voice disorders - -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
What is another name for volume velocity - Air flow
T or F: Many lesions stiffen the mucosa lining of the vocal folds - True
pressure, flow and resistance equation - pressure=flow x resistance
resistance = pressure/flow
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