The laws and mechanics of circulation, with the principle involved in animal movement . Fig. 127.—Longitudinal Section of the Abdomen, showing position of the 128.—Longitudinal Section of the Abdomen, showing position of the mesentery during vomiting. plain why emesis may be produced when a bladder containingwater is substituted for the stomach by irritation propagatedfrom the pharynx, which is obvious enough. But here, aselsewhere, the viscus acts in concert with the muscles in theabdomen, contracting vigorously upon the contents, as in thecase of the rectum, bladder and womb,


The laws and mechanics of circulation, with the principle involved in animal movement . Fig. 127.—Longitudinal Section of the Abdomen, showing position of the 128.—Longitudinal Section of the Abdomen, showing position of the mesentery during vomiting. plain why emesis may be produced when a bladder containingwater is substituted for the stomach by irritation propagatedfrom the pharynx, which is obvious enough. But here, aselsewhere, the viscus acts in concert with the muscles in theabdomen, contracting vigorously upon the contents, as in thecase of the rectum, bladder and womb, producing a reverseperistalsis, since this would assist the action ; for Nature con-centrates all her available force in expulsive efforts Theshort, loud inspiratory sound characteristic of vomiting isproduced by energetic inspiration suddenly arrested by thestronger action in the abdominal muscles. The above illus-trations will serve for impressing the matter (Figs. 127, 128). TBE ACTION IN EMESIS. 315 Thus the mesentery is forcibly compressed against thestomach under the energ


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Keywords: ., bookcentury1800, bookde, booksubjectblood, booksubjectrespiration