The indications for their use are clear, and their need help writing a persuasive essay effects tolerably certain. Of the large and increasing class medicines whose primary action probably the nervous system, and indirectly many other portions the organism, our practical knowledge college essay help nyc extensive, but not complete, wTiile, in regard the mode their action, are beginning, and only beginning, get more precise notions. In this direction, clinical observation, though a valuable adjunct, can never advantageously take the lead.
This done laborious and careful physiological help me write my essay experiment, such as have an example in the researches a member this Society the Beside the more obvious indications for the use anaesthetics and narcotics, which are, perhaps, quite as exact here as in any department medical science, the usefulness this class medicines seems likely extend much beyond the neuroses many diseases abnormal nutrition, dependent abnormal innervation and these diseases are no means few.
Many experiments have shown how great an influence exercised the nerves over the secretions, and pathological facts have also shown their effect upon nutrition in general. Probably this takes place means the nerves which control the circulation, both the energy the heart and the calibre the bloodvessels.
These facts, as well as many pathological anatomy, point in this direction as likely in the future a rich field for investigation in the action drugs.
In many cerebral diseases, the marked immunity the nervous elements proper, as distinguished from the changes, first, the bloodvessels, and, secondarily, the connective tissue, the evidence, in chronic cases, long-continued congestion the cerebral vessels, and, in recent cases, sometimes the absence any lesion discoverable after death, and sometimes the presence mere acute congestion, explain the good effects shown observation obtained agents which influence the circulation, or which call more blood in another direction, and also lead hope that the control may sometime more complete.
Beside many agencies, which the uses or a part the uses are well established, -tb are many others, either just coming into notice, whose value not yet well determined or generally appreciated, or else concerning which lie prejudices have been great and the warfare hot that a really unbiassed judgment not easy.
It perhaps, in regard bleeding and mercury that currents and counter-currents run more strongly than anywhere else. The cv writing services london present reaction against writers essays excessive venesection and depletion can hardly wondered at when know, either observar tion or reading, the state things which preceded The counter-reaction, which seems not very far off, will not carry back the old fashion, but will approach more nearly a legitimate and rational employment a powerful remedy, instead a routine use, or almost equally The whole plan counter-irritation has been receiving a thorough discussion lately in some the periodicals.
It certainly very easy show the absurdity irritating or depleting applications the walls a cavity with a view withdrawing blood from the contents, which are supplied from a different set vessels.
I remember seeing an autopsy where an internal strangulation the intestines had just been disclosed. The operator quietly laid the abdominal walls back into research paper writing service india place, and, saying nothing, pointed the marks thereon three leech-bites corresponding in position the lesion below. Comment was unnecessary. It would very difficult, however, convince either practitioner or patients, let destroy all the theories as completely as may, that relief from pain, if nothing more, not very apt follow the application so-called counter-irritants. An explanation not necessary our present purpose, since if the facts are wholly or partially established, may make present use the knowledge, fitting them in with former theories afterwards at our leisure.
We may, however, mention, as furnishing, if not an explanation, a physiological analogy these facts, certain recent experiments. I refer those BrownSequard, who has shown how the temperature one hand may reduced placing the other in ice-water, the reduction being too great and too rapid accounted for the cooling the whole mass the blood and others where an alteration temperature was produced in the limbs Brown-S quard and Lombard or the nervous centres Schiff irritation sensitive nerves. Also those Dr. Mitchell, who found that freezing certain portions the skin in pigeons very curious nervous symptoms were produced, nearly corresponding those due irritation nerve centres. Most curious all, if the crop a pigeon were frozen the ether spray, continued walk the opposite side or ten minutes, as if his cerebellum had been treated in the same way. All these observations, as well as many facts reflex influence, both experimental and clinical, show that the effects counter-irritation are explained nervous action. The subject, though very interesting, far too extensive urgent custom essays treated or even folly illustrated at this time. Regulating the temperature direct application cold and heat the body a means treatment which yet receive more extensive and also more exact and systematic application and the same may said the different qualities the galvanic current, an agency which fast assuming a position the greatest importance in the treatment nervous diseases, There somewhere a perfect system therapeutics.