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21 Cards in this Set
- Front
- Back
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What are the 5 layers of the VFs? AND tell what they are made up of.
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1: stratified squamous epithelium
2: superficial layer of the lamina propria (collagen fibers: reinke's space) 3: intermediate layer of the lamina propria (elastic and collagen fibers) 4: deep layer of the lamina propria (dense collagen fibers) 5: vocalis muscle |
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Where does swelling (edema) vocal folds occur? How is this cured?
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in Rienke's Space (rienke's edema)
-cured using phonosurgery |
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What is the name of the movement of the VFs? AND when does this occur?
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mucosal wave
-when VFs are in their most relaxed phonatory state (normal speech) |
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What is vertical phase lag?
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-aspect of mucosal wave
-top 1/2 of VFs lag behind bottom 1/2 (creates wave) |
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What is the role of the respiratory system during phonation?
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-power supply
-regulates breathstream to initiate and sustain phonation (constant airflow and Psg) -emphasis on abdominal muscular support rather than rib cage |
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What is the prephonatory position? AND what muscles become active for this?
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-slight glottal opening
-slight tension in the VFs -possible adducted position -active muscles: LCA, PCA, CT, TA |
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What is the bernoulli effect?
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-drop of pressure at the point of constriction
-increase in airflow as it passes thru constriction |
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What are the types of vocal onset?
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-breathy/whisper
-normal -abrupt |
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Name the vocal registers.
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-pulse/vocal fry
-modal -falsetto/loft |
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What is the neurochronaxic theory of voice production? Is it credible?
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-pitch is directly related to firing rate of recurrent laryngeal nerve
-has been disproven |
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What is the myoelastic-mucoso-aerodynamic theory of voice production? Is it credible?
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-voice vibrates as a result of muscle elasticity, mucous, and airflow (not nerve firing)
-proven to be correct |
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What is vocal shimmer? What does hoarseness do to this?
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small changes in amplitude (loudness)
-increases with hoarseness |
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What is vocal jitter?
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small changes in frequency (also increases with hoarseness)
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What is perturbation?
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cycle to cycle changes in amplitude and frequency (normal aspect of phonation)
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What is quasi periodic vibratory manner?
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most of the cycles are the same but some are different (i.e., vocal jitter and shimmer)
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What will weak or paralyzed VFs result in for onset?
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abrupt onset or breathy onset
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What type of problems are voice problems?
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mechanical and respiratory
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What does normal phonation require?
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muscular elasticity and aerodynamics
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What is the recoil force during VF vibration due to?
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slight tension placed on each VF
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What will tense VFs result in for onset?
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abrupt or breathy onset (will disrupt the recoil force)
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For the bernoulli effect to work, which air pressure is greater?
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Psg is greater than Po
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