Phonatory System Anatomy: Folds membranes

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10 Terms

1
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True Vocal folds

involved in airway protection and vibration for speech (from our earlier notes)

<p>involved in airway protection and vibration for speech (from our earlier notes)</p>
2
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False Vocal folds

aka ventricular folds. Located above true vocal folds.

<p>aka ventricular folds. Located above true vocal folds.</p>
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What is the function of false vocal folds

Contain mucous glands that lubricate true vfs

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Do the false vocal folds produce phonation?

No, except in rare occasions

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Ventricular dysphonia

When false vocal fold's vibrate (produce phonation). Rough,hoarse sound. Due to disease or psychogenic

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aryepiglottic folds

AKA aditus laryngitis lateral borders of epiglottis
- embedded within folds

<p>AKA aditus laryngitis lateral borders of epiglottis <br>- embedded within folds</p>
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The Larynx Coronal view to give better understanding

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What is the function of aryepiglottic folds

pull epiglottis down
-- cuneiform cartilages embedded within aryepgilottic folds sometimes visible as small lumps or "tubercles"

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quadrangular membrane

· Located: lateral borders of epiglottis and arytenoids

· Upper edge: Aryepiglottic folds

· Lower edge: Ventricular folds (False Vocal folds)

<p>· <strong>Located</strong>: lateral borders of epiglottis and arytenoids</p><p><strong>· Upper edge:</strong> Aryepiglottic folds</p><p><strong>· Lower edge:</strong> Ventricular folds (False Vocal folds)</p>
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What do the quadrangular membrane compromise

lateral walls of supraglottal cavity