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Medical ArticlesSoapy Blanket TheIt seems necessary, in getting people to use the best means fo... Croup This is a disease of children. Comes on in consequence of a s... The Anti-gastric Method consisting in the free use of emetics or purgatives, has been... Rules For The Application Of Water In Typhoid Cases As a general rule, in typhoid cases, bathing should form one ... Water-drinking As the patient should have a constant supply of pure air for ... Wet Compress The wet compress on the throat in torpid cases should not be ... Causes And Dangers Of Polluted Water Wells--the Oldest Method of Supplying Water. It was long ago ... Massage This seems a very simple thing to do, but is by no means easy ... Rules For Direct Laryngoscopy 1. The laryngoscope must always be held in the left hand, nev... Fatty Heart The cause of deposits of fat around the heart or in between i... The Habit Of Illness IT is surprising how many invalids there are who have... Infants' Food For infants who cannot be nursed at the breast, cows' milk in ... Prevention If the patient is weak, the circulation depressed, the blood ... Notes On Nursing Tracheotomized Patients Bedside tray should contain: Duplicate cannula Scalpel ... Nervous Attacks What we call, for want of a better name, "nerve force," or "ne... St Vitus' Dance This proceeds from a simple irritation of the spinal nerves, a... Favorable Symptoms are the following: Absence of internal inflammation; a bright... Lumbago Lumbago differs from both paralysis and cramp of the lower bac... Endoscopy In Malignant Disease Of The Larynx The general surgical rule applying to individuals past middle... Cardiac Drugs Whether any drug should be used which acts directly on the he... |
Mechanical Effect Of Each PoleCategory: PRINCIPLES OF PRACTICE. Source: A Newly Discovered System Of Electrical Medication The mechanical effect of the forward end of the current, or that part of it which is under the negative electrode, is to relax, expand and weaken; while that of the rear end, under the positive electrode, is to contract and strengthen. A moving ship disperses the waters at its bow, but draws them in at its stern. The bullet shot from a gun, in passing through a plank, leaves the perforation closed where it enters in, but wide open where it comes out. Thus, in physics, the advance end of a moving body tends to disperse the element through which it is passing, while the rear end tends to its contraction. Analogous to this are the mechanical effects of the different ends of an electrical current in the living tissue. When, therefore, we wish to relax a muscle that is unnaturally contracted, as by rheumatism or otherwise, we must bring it under the forward end--the outward current--the negative pole. If we desire to contract ligaments or muscles that are abnormally relaxed, (not atrophied), as in prolapsus uteri, we must subject them to the rear end of the current--the positive pole. Parts that are unnaturally contracted are electrically negative in excess, and need to be made more positive. And parts that are unhealthily relaxed are too positive, and should be made more negative. We make a part more positive by applying to it the negative pole, and more negative by applying to it the positive pole. Parts spasmodically contracted are acute and positive; those permanently contracted are chronic and negative. Next: Relaxed And Atrophied Conditions Previous: The Inward And The Outward Current
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