The outlines of anatomy, physiology, and hygiene Being an edition of The essentials of anatomy, physiology, and hygiene, rev to conform to the legislation making the effects of alcohol and other narcotics upon the human system a mandatory study in public schools . ?) T ?/ Fig. 25.—Outside of the stomach, front view, showing the muscular coat. extremity, and the cardiac opening near the mid-dle.^ The stomach extends toward the left forabout three inches beyond the cardiac orifice, andis larger in this part than in any other. This por-tion is called the great pouch of the organ (Fig. 26).Each or
The outlines of anatomy, physiology, and hygiene Being an edition of The essentials of anatomy, physiology, and hygiene, rev to conform to the legislation making the effects of alcohol and other narcotics upon the human system a mandatory study in public schools . ?) T ?/ Fig. 25.—Outside of the stomach, front view, showing the muscular coat. extremity, and the cardiac opening near the mid-dle.^ The stomach extends toward the left forabout three inches beyond the cardiac orifice, andis larger in this part than in any other. This por-tion is called the great pouch of the organ (Fig. 26).Each orifice is guarded by a powerful muscle,surrounding it in a circular form, which can con-tract so tightly as to prevent the passage even of afluid. As a rule, these muscles prevent the passageof any substance backward through them, in oppo-sition to the natural course of the food. * Pylorus, a Greek word meaning the gate-keeper / cardiac, from aGreek word meaning the heart, because it is very near that organ. 78 ORGANS OF REPAIR. 97. Stomach-Digestion. — It was formerly sup-posed that the whole process of digestion was. Fig. 26.—Inside of the stomach, front view, showing the folds (or rugae) ofthe mucous membrane. performed in the stomach, but this is now knownnot to be the case. The nitrogenous portions ofthe food are the only ones that are digested in thestomach. The oily and fatty, as well as the starchy,portions are digested in the small intestines. Fluidsare very rapidly absorbed by the stomach. 98. Dr. Beaumont and St. Martin.—There are somany difficulties connected with the investigation of STOMACH-DIGESTION. 79 the subject of digestion, that very little was reallyknown about it until the year 1833, when a smallbook was published by Dr. Beaumont, of the UnitedStates Army, giving physiologists their first preciseknowledge of what takes place in the human stom-ach. His observations were so well taken, thatvery Httle has been added since to what he dis-covered upon th
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