The laws and mechanics of circulation, with the principle involved in animal movement . ough the in Himmel! Give it the go-by instantly; it would chokethe life out of you. And do not think of forcing open thestomach and abdomen by any means whatever, but ratherpermit them to expand of their own option under the stimulusof the food and the reflex actions this excites in the medullaoblongata from the sensory impressions it produces in themucous surface, or the same as obtains in the lower animals. 196 PHYSIOLOGICAL ANATOMY. You cannot improve the mechanics, founded as it is in theorga
The laws and mechanics of circulation, with the principle involved in animal movement . ough the in Himmel! Give it the go-by instantly; it would chokethe life out of you. And do not think of forcing open thestomach and abdomen by any means whatever, but ratherpermit them to expand of their own option under the stimulusof the food and the reflex actions this excites in the medullaoblongata from the sensory impressions it produces in themucous surface, or the same as obtains in the lower animals. 196 PHYSIOLOGICAL ANATOMY. You cannot improve the mechanics, founded as it is in theorganic laws, therefore wonderfully perfect and harmoniousin all the movements. In short, the effort to explain this beautiful mechanism inthe absence of the fundamental principle underlying it, is asfutile as the attempt to sit upon nothing. Food requiresroom to be made for it, and you must permit the stomach andabdomen to expand pari passu with the ingoing of the ingestain order to make this room; otherwise, the food could neverbe introduced and animal life would be impossible. All is. Tig. 63.—A Longitudinal Section of the Human Stomach, showing the folds in themucous membrane.—Gray. chaos in the absence of this law and what it involves. It isneedless to extend the matter. Concerning the Action in the Stomach.—Coming to the stom-ach, the first thing to engage attention is the anatomical dis-positions in the mucous membrane, which contains theorgans of secretion and absorption. In the empty or con-tracted condition of the stomach, the mucuous membrane isthrown into a series of longitudinal folds (Fig. 63), the looseareolar tissue connecting it with the adjacent circular mus- PHYSIOLOGICAL ANATOMY. 197 ?cles, which form a continuous cylinder through the wholelength of the intestinal canal, admitting of this action in themucous membrane, or, rather, compelling it, since it does notpossess the same powers in expansion and contraction as themuscles ; hence, when the organ becom
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