The shared throat crossing.
How does food cross a shared air passage?
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How does food cross a shared air passage?
Fit the specimen and set conditions before running.
The soft palate seals the upper route, while elevation and closure protect the larynx. Only then does the upper esophageal sphincter admit the bolus.
Slowed pharyngeal swallow. Soft palate, laryngeal elevation/closure and upper sphincter cooperate; epiglottis alone is not sufficient.
Carry food into the esophagus while protecting the airway.
Carry food into the esophagus while protecting the airway.