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16 terms
Terms | Definitions |
|---|---|
 vocalis muscle | "body" |
| vocal mucosa | "cover" |
| superficial lamina propria | isolates the "body" and "cover" in Hirano's body-cover model |
| Titze's "cover" | distributed surface layer that can propagate a mucosal surface wave |
| oscillation threshold pressure | these 3 things reduce ______________. 1.)reducing mucosal wave velocity 2.)bringing vocal folds closer together 3.) reducing convergence angle in glottis |
| flow | sustained vocal fold oscillation is ____________ induced |
| net aerodynamic force has a component in phase with tissue velocity | a positive flow of energy from the airstream to the tissue can be realized if the |
| Ma+Bv+kx=f(x,v,t) | fundamental equation of motion for a mass-spring oscillator |
| autonomous | a differential equation is ___________ is f is time independent |
| self-oscillate | autonomous differential equations describe systems that ______________ |
| v | dependence of f on ____________ is crucial for oscillation |
| true | True/false: When f is in the direction of v, energy is imparted to the mass |
| false | True/false: When f is in the opposite direction of v, energy is imparted to the mass. |
| driving-force asymmetry on alternate quarter cycles | These 2 things can cause ____________. 1.)making use of opposite phased supraglottal or subglottal acoustic pressures 2.) varying glottal geometry to create different intraglottal pressure distributions |
| inertial properties of air column in vocal tract | When making use of oppositely phased supraglottal or subglottal acoustic pressures, oscillation is facilitated by |
| nonuniform deformation of tissue | When varying glottal geometry to create different intraglottal pressure distributions, oscillation is facilitated by |
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