Aspiration is the inadvertent passage of material—including food, liquid, saliva, gastric contents, or other exogenous material—into the airway. Pneumonia as a result of aspiration is a leading cause of death among several patient groups, as well as for the elderly. The close proximity of the trachea (or airway) and the esophagus allows for relatively easy inadvertent ingestion of swallowed material into the lungs aspiration (see Figure 1). This entry … Swallow Physiology, Neural Control of Swallowing, Dysphagia, Swallow Evaluation, Classifying Aspiration

Aspiration is directly tied to swallowing dysfunction. Under normal circumstances, swallowing involves a complex series of events functioning to move ingested food and liquids from the oral cavity to the esophagus safely and efficiently. This is accomplished via a highly coordinated series of muscle ...

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