Phonation Physio Flashcards
process of capturing air in thorax to provide muscles with a structure ot push or pull
Abdominal fixation
what is the primary function of the larynx?
protect the airway
the perceptual (psychological) correlation of frequency of vibration
Pitch
of cycles of vibration per second
Frequency
frequency is determined by these four factors
Mise (as in meeseeks)
elasticity
stiffness
mass
inertia
“Given constant volume of flow of air/fluid, at point of constriction there is decrease in pressure perpendicular to flow and increase in velocity of flow”
Bernoulli principle
Frequency of vibration of vocal folds is called
fundamental frequency
a sound’s intensity is also called its
amplitude
degree to which waveform deviates from zero line
amplitude
first adduction of vocal folds over a moving airstream
Vocal Attack
process of abducting VF to stop phonation
Termination of phonation
phonation that continues for long durations due to tonic contraction of VF adductors
Sustained phonation
Three types of vocal attacks
1) simultaneous
2) breathy
3) hard/glottal
Primary arytenoid mvt for adduction
inward rocking
differences in mode of vibration of vocal folds called
Registers
how long a person can sustain a sound is called
maximum phonation
Differences in registers come from these three factors
Laryngeal tension, medial compression and subglottal pressure
Normally phonation requires _____ cm H20, but for pulse register it requires ____
3-5; 2
Four vocal registers
Pulse/glottal
Modal
Falsetto
Whistle
In this register, there is no vocal fold contact; the sound comes from turbulence
whistle
Two variations of modal register
Pressed
Breathy
In this type of modal speaking, the medial part of the VFs are compressed and the sound is louder
pressed
In this type of modal speaking, there is inadequate closure, leading to an airy sound
Breathy
The switch from modal to falsetto happens in this Hertz range
300-600 (D4-D5)
VF vibration most appropriate/efficient for an individual
Optimal pitch
VF vibration a person usually uses is called
habitual pitch
_____’s VF experience a growth spurt during puberty
everyone’s