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Comd 5070 exam 2 study guide Exam/82 Q’s and A’s (Verified)
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Comd 5070 exam 2 study guideExam/82 Q’s and A’s (Verified)
What is another name for volume velocity - -Air flow
-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
-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
-T or F: you can measure Psub and estimate Flow - -Falsee...you can
estimate Psub and measure flow
-What will the oral air pressure be like when producing a vowel? - -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? - -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? - -higher than a fricative
-Ohm's law states: - -Pressure, flow, and resistance are all linear related to
one another
-What does it mean when it is said that there is a pressure drop across the
glottis - -The pressure below the larynx is higher and the pressure above the
larynx is lower
-Difference of pressure from below and above the larynx
(pressure below-pressure above) - -Transglottal pressure
-How do you measure the transglottal pressure - -pressure below-pressure
above
-What determines how much air flows through the larynx - -resistance
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