Module 8 Flashcards
Phonation 2/26 Part 2 (26 cards)
-Focus of vibration of our vocal folds
-Through a contraction , the velocity of the flow increases , causing a decrease in pressure
Bernoulli Effect
The Translaryngeal Pressure allows airflow going through the _____
Larynx
The Laryngeal Opposing Pressure brings the v.f ______
together
List the Vocal Fold Vibration
First the V.F , Start closed because of Laryngeal Opposing Pressure
- Column of air pressure moves upwards towards V.F. in closed position
2/3. Column of air pressure opens at the bottom vibrating layers of V.F. Body of the V.F. stay in place
4/5. Column of air (Translaryngeal Pressure) continuous to move upwards, now towards the top of V.F. and opens the top
6-9. The low pressure created behind the fast-moving air column produces a “ bernoulli effect “ which cause the bottom to close , followed by the top
- CLosure of the V.F. cuts off the air column and release a pulse of air
Attack
—the process of bringing vocal folds _________ to begin phonation (adduction)
together
simultaneous vocal attack
-________ adduction and onset of respiration
coordinate
breathy vocal attack
—starting significant airflow ______ adducting the vocal folds
before
glottal attack
-adduction of the vocal folds occurs ________ to the airflow
prior
What is abducting the vocal folds out of the airstream ( bring them apart )
Termination
What is maintaining the V.F. in place ?
Sustained Phonation
vertical mode of phonation—the vocal folds open and close from ________ to ________
infeior to supeior
horizontal mode of phonation—vocal folds also tend to open ____________ to ____________
posterior to anterior
The minimum driving pressure of the vocal folds in modal phonation is about ______________ cm H20 subglottal pressure.
3-5
Optimal Pitch- the pitch of vocal fold vibration that is ______ for an individual
Optimal
Habitual Pitch- the frequency of vibration of vocal folds that is ______________ used during speech (normal)
habitually
Average Fundamental Frequency—the average frequency of vibration of the vocal folds during some ______
Sustained Phonation
What can change the mass per unit length by spreading the muscle, mucosa, and ligaments out over more distance?
Mass
What can stretch them tighter or relax them
?
Tension
length—elongation is what really affects the _________ and _________
tension and mass
To Increase pitch
Increase length
Decreases mass
Increases tension
To Decrease pitch
Decrease length
Increase mass
Decrease tension
What Contraction causes the thyroid cartilage to tilt down vocal folds lengthen ?
Cricothyroid muscle
What Contraction causes the thyroid and cricoid to come closer together the mass of the vocal cords is distributed over a great distance less mass per unit length
Which lengths the V.F. which increases the pitch
Thyroarytenoid (vocalis) muscle
What Vocal register is extremely low in pitch and sounds rough
The vocal folds vibrate slower than normal, but also differently?
Pulse