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Spallanzani's digestion experiment

Spallanzani's digestion experiment

C002/3129

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Credit

SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY

Caption

Spallanzani's digestion experiment. Historical artwork of an experiment on digestion carried out by the Italian biologist Lazzaro Spallanzani (1729-1799). Spallanzani fed birds with food in perforated containers, which were recovered by pulling on an attached string (seen here). Spallanzani concluded that a major part of digestion is the action of fluids in the stomach, which he named gastric juices. Spallanzani's experiments helped to overturn Galen's theory that digestion was a form of cooking due to the heat of the stomach.

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