Exam 2 Part 11

Question 1

Subglottic Pressure and Transglottal Flow indirectly assess what 2 things?

Answer 1

Laryngeal valving mechanism and vocal function

Question 2

How do you find transglottal pressure?

Answer 2

Subglottal pressure minus supraglottal pressure

Question 3

Minimum subtotal pressure needed to initiate vocal fold vibration

Answer 3

Phonation threshold pressure

Question 4

For normal voicing, do we have higher or lower phonation threshold pressures (PTP)?

Answer 4

Lower

Question 5

Why do we need to calibrate aerodynamic equipment

Answer 5

Can be easily manipulated by the environment (wind, background noise)

Question 6

External calibrator we use to calibrate pressure

Answer 6

U-tube manometer

Question 7

External calibrator we use to calibrate airflow rate

Answer 7

Rotameter

Question 8

Instruments that measure speech aerodynamics exploit the integral and predictable relationship between the following: (3)

Answer 8

Pressure, flow, resistance

Question 9

Uses differential pressure across a known resistance to estimate flow rate.

Answer 9

Pneumotachograph

Question 10

What is Ohm’s law?

Answer 10

Voltage (flow) = current x resistance

Question 11

Flow of electrons in Ohm’s law

Answer 11

Current

Question 12

Flow from one side to another in Ohm’s law

Answer 12

Voltage

Question 13

How do you find mean flow rate?

Answer 13

Flow divided by time

Question 14

Total amount of flow during a given speech/voice task

Answer 14

Phonatory volume

Question 15

Force beneath the adducted vocal folds

Answer 15

Subglottal air pressure

Question 16

How do we measure subglottal pressure?

Answer 16

Measured/estimated indirectly using intraoral pressure during repeated productions of unvoiced /p/ + vowel syllable (e.g., /pi/).

Question 17

Quotient of peak intraoral pressure (estimated from the production of an unvoiced /p/) divided by the peak flow rate (measured from the production of a vowel /i/) produced in a repeated train of /pi/ syllables

Answer 17

Laryngeal resistance (pressure gradients divided by flow rate)

Question 18

A high laryngeal resistance indicates…

Answer 18

Hyperfunction (valve too tight) of glottal closure

Question 19

A low laryngeal resistance indicates….

Answer 19

Hypofunction (valve too loose) insufficient glottal closure

Question 20

An analysis technique applied to aerodynamic or acoustic signals to analyze glottal airflow

Answer 20

Inverse filtering