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02-HandoutsResonanceandVPD - Cook Children's

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Patterns of Closure<br />

Variations in VP Closure<br />

• Non-Pneumatic:<br />

– gagging, vomiting, swallowing<br />

• Pneumatic:<br />

– Positive (+) pressure: blowing, whistling,<br />

speech<br />

– Negative (-) pressure: sucking, kissing<br />

23

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