Word: saliva
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Dates: during 1890-1899
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...substance, the apparatus, the reagent, the nature of the reaction, and finally the nature of the products of reaction. These five factors are likewise present in all digestive processes. The substance is in this case the food-stuffs; the apparatus, the mouth, stomach, intestines, etc.; the reagents, the saliva, gastric and pancreatic juices, and the bile; the nature of the reaction, into what state the food-stuff is converted for assimilation; and finally the nature of this digested food-stuff...
...process of digestion the food-stuffs are acted upon firstly in the mouth, by the saliva, which not only serves as a lubricant but also to change such carbohydrates, as may be present, into dextrine and sugar. The food is next a +++ted upon in the stomach by the gastric juices, which render the proteids present more soluble and converting them finally into peptone...