EXAM #2 STUDY GUIDE Comd 5070 WITH ACTUAL CORRECT DETAILED ANSWERS OF CURRENTLY TESTING SOLUTIONS
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Course
Comd 5070
Institution
Comd 5070
The study guide for EXAM #2 in Comd 5070 provides detailed answers to key concepts related to voice production and airflow measurements. It covers topics such as volume velocity (air flow), u-tube manometers for pressure measurement, subglottal pressure, phonation threshold pressure, and the dynami...
EXAM #2 STUDY GUIDE Comd 5070 WITH ACTUAL CORRECT
DETAILED ANSWERS OF CURRENTLY TESTING SOLUTIONS
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
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