Phonatory System Physiology: Glottal Configurations

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6 Terms

1
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What does glottal size configurations mean?

space between vfs according to different activities

2
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Example of glottal size configurations:

1. breathing

1a. Minimal muscle activity of posterior cricoarytenoids

--> result: medium glottis

1b: forced inhalation. Muscle: posterior cricoarytenoids.

---> result: large glottis

3
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Example of glottal size configurations:

2. Voiceless

- vfs abducted

- brief, unobstructed airflow through "medium" glottis

- air flow altered in oral cavity

- result: voiceless sounds ex: p/s/f

- muscle: posterior cricoarytenoids

<p><strong>- vfs abducted</strong> </p><p>- brief, unobstructed airflow through "medium" glottis</p><p>- air flow altered in oral cavity </p><p>- <strong>result</strong>: voiceless sounds ex: p/s/f</p><p>- <strong>muscle</strong>: posterior cricoarytenoids</p>
4
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Example of glottal size configurations:

3. Phonation (voiced)

- vfs adducted

- no-to-minimal glottis

- obstruct/impede air flow momentarily

- result: voiced sound

<p><strong>- vfs adducted</strong></p><p>- no-to-minimal glottis </p><p>- obstruct/impede air flow momentarily </p><p>- <strong>result</strong>: voiced sound</p>
5
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Example of glottal size configurations:

4. Whisper

Glottis: narrow or small triangular looking

Configuration: vfs partly adducted

-air flow resistance creates turbulence BUT no voiced sound

- result: just aiduble hissing noise

- muscle: lateral cricoarytenoids

<p><strong>Glottis</strong>: narrow or small triangular looking </p><p>Configuration: <strong>vfs partly adducted</strong></p><p>-air flow resistance creates turbulence <strong>BUT no voiced sound</strong></p><p>- <strong>result</strong>: just aiduble hissing noise</p><p>- <strong>muscle</strong>: lateral cricoarytenoids </p>
6
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Example of glottal size configurations:

5. Breath holding

- vfs adducted and no glottis

- muscles: adductors

- result: trap inahled air in lungs