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COMD 5070 exam 2 study guide

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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...

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  • August 15, 2024
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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 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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