Comd 5070 exam 2 study guide Questions With Competely Verified Answers
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Course
Comd 5070
Institution
Comd 5070
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...
Comd 5070 exam 2 study guide Questions With
Competely Verified Answers
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 a u-tube manometer best used for? - ANSWER-Calibrations of equipment and
measuring static pressure
What are the limitations of a manometer - ANSWER-Measuring speech production
where the pressure goes up and down rapidly.
How do the rib cage and abdomen move as we speak - ANSWER--inhale: rib cage and
abdomen expand
-exhale: rib cage and abdomen contract
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
What does it mean when it is said that there is a pressure drop across the glottis -
ANSWER-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) - ANSWER-Transglottal pressure
How do you measure the transglottal pressure - ANSWER-pressure below-pressure
above
What determines how much air flows through the larynx - ANSWER-resistance
How does resistance determine how much air flows through the larynx - ANSWER--
higher resistance means lower flow;
-lower resistance means higher flow
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