Final answer:
Aspiration occurs when food or liquid enters the lungs, leading to potential health risks.
Explanation:
Aspiration is the condition that occurs when food or liquid enters the lungs, which can lead to aspiration pneumonia. This is different from dysphagia, which is difficulty swallowing food or liquids. In the case of reflux, stomach contents flow back into the esophagus, not the lungs.
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