Ingestion

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Ingestion

Definition

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Ingestion is the consumption of a substance by an organism. In animals, it normally is accomplished by taking in the substance through the mouth into the gastrointestinal tract, such as through eating or drinking. In single-celled organisms, ingestion can take place through taking the substance through the cell membrane. Besides nutritional items, other substances which may be ingested include medications (where ingestion is termed oral administration), recreational drugs, and substances considered inedible such as foreign bodies or excrement. Ingestion is a common route taken by pathogenic organisms and poisons entering the body. Ingestion can also refer to a mechanism picking up something and making it enter an internal hollow of that mechanism, e.g. "a grille was fitted to prevent the pump from ingesting driftwood".

English Wikipedia http://en.wikipedia.org/wiki/Ingestion

Spanish wikipedia http://es.wikipedia.org/wiki/Ingesti�n