Swallowing Flashcards

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1
Q

What are the stages of swallowing?

A

Ingestion
Stage 1 transport
Mechanical processing
Stage 2 transport
Swallowing

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2
Q

What is ingestion?

A

Food enters into the mouth from external to internal environment. Anterior oral seal with lips

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3
Q

What is stage 1 transport?

A

Food controlled by the tongue tip and moved onto occlusal surfaces of posterior teeth

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4
Q

What is mechanical processing?

A

Solid foods broken and mixed with saliva before swallowing
Bolus of food is squashed against palate and tongue
Food is chewed with premolars and molars

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5
Q

What is stage 2 transport?

A

Bolus moves anterior to posterior by squeezeback
Solid foods moved through fauces to pharyngeal surfaces of the tongue
Seal holds liquids at pillars of fauces

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6
Q

What is swallowing?

A

Involuntary movements push bolus through pharynx to oesophagus
Epiglottis closes to prevent backflow
Peristalsis occurs to move bolus toward stomach

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