COMD 5070 exam 2 study guide
1. What is another name for volume velocity?
️ Air flow
(This term refers to the amount of air moving through a given area in a specific time period.)
2. How do you calculate the average air flow (volume velocity)?
️ Volume/time
(Air flow is typi...
(This term refers to the amount of air moving through a given area in a specific time period.)
2. How do you calculate the average air flow (volume velocity)?
✔️ Volume/time
(Air flow is typically expressed in cubic centimeters per second (cc/s) or liters per minute (L/min).)
3. 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.
(It utilizes the fluid displacement in the arms of the U-shaped tube to show pressure differences.)
4. 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.
(This height difference correlates to the pressure being measured.)
5. What is a u-tube manometer best used for?
✔️ Calibrations of equipment and measuring static pressure
(It is particularly useful in low-pressure measurements.)
6. What are the limitations of a manometer?
✔️ Measuring speech production where the pressure goes up and down rapidly.
(Manometers may not respond quickly enough to dynamic changes in pressure associated with
speech.)
, 7. How do the rib cage and abdomen move as we speak?
✔️ - Inhale: rib cage and abdomen expand
✔️ - Exhale: rib cage and abdomen contract
(This movement is part of the respiratory cycle that aids speech production.)
8. What is subglottal pressure?
✔️ Pressure that the lungs provide that goes up the trachea to the larynx.
(It’s crucial for phonation as it affects vocal fold vibration.)
9. What is subglottal pressure abbreviated as?
✔️ - Pₛ (P subscript s)
✔️ - P subscript sub
(Standard notation to denote subglottal pressure in scientific literature.)
10. Where is subglottal pressure measured?
✔️ Directly below the larynx
(This location provides the most accurate reflection of the pressure affecting vocal fold vibration.)
11. How much subglottal pressure is enough for speaking?
✔️ Normal speech: 5-7 cmH₂O
✔️ Very loud speech: 15-20 cmH₂O
(These values indicate the range needed for effective phonation.)
12. What is phonation threshold pressure?
✔️ The pressure needed from the lungs to just get the vocal folds to oscillate to produce the softest
voice.
(This is the minimum pressure required to initiate vocal fold vibration.)
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