Stomacher

“ A striking illustration of this is offered in the stomach. The digestive juice which is produced in the stomach is capable of attacking and destroying living substance, and any organic material suitable for food which is placed in the stomach will, as we know, be attacked by the gastric juices, dissolved to a certain extent by them, and so destroyed. Why then does the gastric juice not attack the stomach itself? This is but one phase of the problem why the body does not continually destroy itself. ”

“ The stomach, while it retains its general tubular form increases considerably in length and assumes the shape and structure found in the human large intestine. It is partially subdivided by folds projecting into the interior and separating compartments resembling the colic cells of the human large intestine. The time required for the passage of food through the stomach is thus increased and the action of the gastric juice is prolonged and rendered more intense. ”

“ The nearest approach, in the adult form, to special organs are the digestive cavity, and the cnidæ. The stomach, however, possesses no true parietal walls, and in one form—the fresh-water hydra—the stomach will do duty for the skin, and the skin for the stomach, if necessary; they seem to be able to live very comfortably, and digest their food without difficulty when turned wrong-side outward. ”

“ After an hour or two the stomach squeezes the food so hard that a little of it, which has been digested by the gastric juice and the saliva, escapes through the lower opening, the pylorus, of which we have already learned. As the action of the stomach continues, more of the digested food escapes, until all that has been properly acted upon has passed out. ”

“ If too large a quantity of food is given at each meal, or the meals are too frequently repeated, in both instances the stomach will become oppressed, wearied, and deranged; part of the food, perhaps, thrown up by vomiting, whilst the remainder, not having undergone the digestive process, will pass on into the bowels, irritate its delicate lining membrane, and produce flatulence, with griping, purging, and perhaps convulsions. ”

“ But this is not all; for in bilious complaints, when the stomach is most disordered, bitters never fail of making evil worse. The stomach is a delicate viscera, and should ever be the most cautiously dealt with. Whatever part of the human body is in exquisite pain, the stomach 226from the nervous consent always partakes, and is apt to be depraved in its functions; whence a nausea is liable to ensue; and in such a case any stimulants, particularly where bitters are concerned, is ever of evil tendency. ”

“ It acts as a digestive organ of importance in preparing the food for further attack in the intestinal canal. But the stomach cannot be regarded as an essential organ, since it has been removed in dogs and in man without apparent interference with nutrition and health. Gastric digestion is brought about by the action of the gastric juice, a clear watery, colourless and strongly acid fluid with a specific gravity of about 1003. ”

“ In the stomach it causes a sensation of warmth which is diffused over the abdomen and quickly followed by a general glow of the body. In moderate quantity, it induces an increased blood-supply which enables the mucous follicles and gastric glands to produce a more abundant secretion of stomach juices. ”

“ HOW AUTO-INFECTION AFFECTS THE GASTRIC DIGESTION, AND VICE VERSA.
Frederick the Great said that all culture comes through the stomach. This saying emphasizes pithily the dependence of psychology upon physiology. The stomach with the intestines is certainly the source from which every portion of the body receives its nourishment and most of its diseases. The physiological plus and minus processes leave their reflex on the mind. ”

“ How very powerful a human stomach may sometimes be, and how large a task in the way of digestion it may sometimes perform without complaint, is known to those who have had the opportunity of observing what certain persons with exceptional power are accustomed to take as food, and do take for a long time apparently with impunity. But these are stomachs endowed with extraordinary energy, and woe be to the individual with a digestive apparatus of moderate power who attempts to emulate the performance of a neighbor at table who perchance may be furnished with such an effective digestive apparatus! ”

“ Several condiments act upon the stomach, or on the intestine, after having first produced an agreeable sensation of taste. The excitation to which they give rise does not extend to the central organ, there to produce the same sensation. They are limited to the stomach and to the intestine, and serve to favor digestion and absorption. The gastric juice, we know, is not secreted continually, but only when there is something in the stomach. ”

“ It may be said that the stomach is a single organ, and therefore incapable of performing more than one function. As well might it be asserted that it was a steam-engine, with a single furnace consuming Whitehaven, Scotch, or Newcastle coals indiscriminately. The fact is, the stomach is not a single organ, but in reality a congeries of organs, each receiving its own proper kind of aliment, and developing itself by outward bumps and prominences, which indicate with amazing accuracy the existence of the particular faculty to which it has been assigned. ”

“ The descriptions and illustrations of the stomach in anatomical works must be disregarded as cadaveric. In the living body, the empty stomach is usually found, on endoscopic inspection, to be a collapsed tube of such shape as to fit whatever space is available at the particular moment, with folds and rugae running in all directions, the impression given as to form being strikingly like searching among a mass of earth worms or boiled spaghetti. ”

“ The stomach has a soft, spongy appearance, and, when not distended, lies in folds. During life, it is ordinarily of a pinkish color. It is provided with numerous small glands, which secrete the gastric fluid necessary for the digestion of food. The lining membrane, when divested of mucus, has a wrinkled appearance. The arteries, veins, and lymphatics, of the stomach are numerous. ”

“ Nature has established such a sympathetic relation between these two parts, that when the mucous surface of the stomach is disordered, and is the seat of that kind of catarrh which is called derangement, fulness of the stomach, &c. that of the tongue is also affected and furnishes more mucous juices, which alter and destroy the appetite, and thus prevent the taking of aliments which the stomach could not digest, and which often even it would not bear. ”

“ But on the contrary when the stomach has previously been rendered torpid by defect of stimulus, as by hunger, if food be too hastily supplied, not only great exertion of the stomach itself succeeds, but fever with strong pulse is induced in consequence; that is, the heart and arteries are excited into more energetic action by the excess of the power of association, which catenates their motions with those of the stomach. ”

“ In such persons some kinds of food, well digested by a normal stomach, will act as an injurious foreign body, and be felt as such by the over-sensitive stomach nerves, and the gastric glands will respond with a large flow of secretion and much acid upon agencies that produce no such stimulation in a normal stomach. ”

“ People troubled with nervous and hypochondriac affections, and who have delicate or flatulent stomachs, are more peculiarly subject to this disorder; and it is observed, that a heavy or flatulent supper greatly aggravates the nightmare, in those who are predisposed to it. The sympathy of the stomach with the head, heart, lungs, and diaphragm, is so remarkable, that there can be no difficulty in referring the several [Pg 943] symptoms of the incubus to a disagreeable irritation of the nerves of the stomach. ”

“ While, however, the bolting of food readily sets up disturbance in some, it must be conceded that in many it seems to cause little or no inconvenience; especially is this the case in the young with vigorous muscular stomachs capable of triturating the food, and thus doing duty for the teeth. The human stomach is, indeed, a [Pg 139] long-suffering organ, and wonderfully tolerant of ill-treatment, sometimes almost rivalling in its hardiness the gizzard of the bird. ”

“ The whole nutritive apparatus is moved. The stomach becomes sensible, the gastric juices are moved and displace themselves with noise, the mouth becomes moist, and all the digestive powers are under arms, like soldiers awaiting the word of command. After a few moments there will be spasmodic motion, pain and hunger. ”

“ Not only the digestion in the stomach, but also the absorption of food transformed into a liquid from the intestines is much assisted by thorough mastication; while, as the result of insufficient mastication, as with fast eaters, the food may cause much greater work to the walls of the stomach. Being much less absorbed from the intestine it may irritate it as a foreign body until expelled by greater efforts of the intestinal walls. ”

“ In all animals, when the appetite is very intense, the stomach rises up, so that some people who have a clear perception of this condition say that their stomach “creeps out” of them; in others, who are still masticating their food and have not yet worked it up properly in the mouth, the stomach obviously snatches away the food from them against their will. ”

“ When the pain and chill come on, disturbances of the digestive organs ensue. When a large vein of the portal system is occluded, the remaining veins must be over-distended, and congestion of a part or of all of the digestive tract will be a result. An acute gastric catarrh is set up. The appetite is lost, the stomach becomes irritable, and vomiting is a usual incident. ”

“ The abdomen, attached to the posterior part of the thorax by a slender ligament, has, for an outer covering; six folds or scales of unequal breadth, overlapping each other, and contains the honey-bag, or first stomach, the ventricle, or true stomach (Plate II. Figs. 1 and 2 f) , with other intestines, to be hereafter referred to.
The honey-bag (Figs. 1 and 2 d) is an enlargement of the gullet, and, although called the first stomach, no digestion takes place here. In shape it is like a taper oil-flask ”

“ Despite all this the stomach is one of the best-equipped mechanisms in the world. It, at least, is not modern. After their age-long development the organs of the body are remarkably standardized and adapted to the work required of them. It is safe to say that ninety per cent. of all so-called "stomach trouble" is due not to any inherent weakness of the organ itself but to a misunderstanding between the stomach and its owner. ”