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Cartilages
Structures of VF
VF Movements
VF Movements Con.
Optimal Pitch
100
*sits on top of the arytenoid cartilage *cone shaped *paired cartilage
What is Corniculate cartilage?
100
3 layers of the vocal folds
What is *Mucosa: epithelium, superficial *Ligament: intermediate, Deep *Muscle: deep, muscle
100
Air moves quickly through the glottal space pressure decreases while velocity increases
What is Bernoulli effect?
100
*Elastic and internal forces bring together upper margin *out phase with lower margin
What is closing in the second phase?
100
Optimal Pitch for women
What is 212 hz?
200
*paired cartilage *small cartilage embedded within the aryepigpottic folds * provides support for membranes laryngeal coverings
What is Cuneiform cartilage?
200
2 layers of vocal folds
What is Cover: Epithelium, superficial, intermediate Body: deep, muscle
200
This returns the vocal folds back to the mid line
What is decreases in air pressure combined with elasticity of muscles
200
* results from muscles, elastic properties, and moving air *begin inhalation-PCA *begin exhalation- LCA. interarytenoid *close vocal folds *subglottic air pressure: VF blown apart, why Ps must be 3-5 cm h20
What is Myoelastic-aerodynamic theory of sound?
200
Optimal pitch in children
What is 300Hz?
300
*Stratified squamous epithelium (outside of vocal folds) *accounts for white shiny look of VF * Cover
What is Superficial Layer?
300
Components of the VF
What is glottis, anterior commissure, membranous portion, cartilaginous portion
300
This pressure builds up and causes the process of the vf cycle to continue
What is Ps(subglottal pressure?
300
*functional vibrating length *cross-sectional mass *tension: Intrinsic and Longitudinal
What is pitch?
300
Relative power or pressure of an acoustic signal measured in decibels *Controls ^Subglottal pressure-primary ^laryngeal(medial compression)-secondary *results in greater opening of the vocal folds, and a greater closed phase for a longer period of time
What is Intensity?
400
*.5mm Elastic Fibers * 1-2mm Elastic Fibers *1-2 mm Collagen Fibers
What is Lamina Propia?
400
landmarks of the larynx
What is VF, pyriform sinuses, valleculae, quadrangular membrane, corus elastics
400
When the vocal folds are at rest they are in this position
What is paramedian? *inspiration: glottis widens *expiration: glottis narrows
400
*appropriate pitch based on individuals larynx *deals with mass and elasticity of the vocal folds
What is Optimal Pitch?
400
This can increase with pitch
What is fundamental frequency?
500
5 layers of vocal folds
What is Epithelium, Superficial Layer, Intermediate, Deep, Muscle
500
*Air pressure produces force which drives tissue apart *Air moves along the surface of the cover *separates at the bottom first then the top
What is vocal fold opening?
500
*Elastic and inertial forces bring back lower margin *lower margin narrows, Bernoulli forces take over] *draws lower margin together *lowers pressure at constriction *with narrowing air velocity increases
What is closing in the first phase?
500
Optimal pitch for men
What is 132Hz
500
*increases vocal folds tension *increases the length of the VF *decreases cross-sectional mass of the VF ^less mass= increased frequency ^explains vocal changes from aging *respiratory: responds to increased tension with increasing Ps
What is typical F0.