Digestion : the passport to health / by Alfred Wright.

  • Wright, Alfred.
Date:
[1883?]
Catalogue details

Licence: Public Domain Mark

Credit: Digestion : the passport to health / by Alfred Wright. Source: Wellcome Collection.

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    digested unless chemically acted on by tlie saliva, or some kindred secretion, to first convert it into grape sugar, it v^^ill be seen that indigestion must follow if the food is bolted before it is properly incorporated with the juice—saliva—thrown out by these glands in the mouth. Having thus shown the importance of the saliva, and having disposed of the pro- cess of Insahvation, we pass on to that of Deglutition, which is the act of swallow- ing food; this should not take place until after it has been made into a soft and pulpy mass by the two foregoing processes, which accomplished, the food is then passed down into the stomach, and that organ proceeds to deal with it by performing the next and chief process, namely, that called \^Chjmification. The glands of the stomach (called peptic) now come into play by throwing out their secretion—the gastric juice. This secretion mixes with the mass, which, for a more or less number of hours, is turned to and fro in the stomach and macerated; then, as a semi-fluid pro- duct, called CJiTjnie, it leaves the stomach