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A manual of practical medical electricity - the Röntgen rays and Finsen light (1902) (14783353042)

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Identifier: manualofpractica00turn (find matches)

Title: A manual of practical medical electricity : the Röntgen rays and Finsen light

Year: 1902 (1900s)

Authors: Turner, Dawson

Subjects: X-Rays Electrophysiology Electrosurgery Electric Stimulation Therapy Electrotherapeutics X-rays Electrophysiology Electrosurgery

Publisher: New York : William Wood & Company

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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is 217 2. Gradual loss of the nerve irritability to both faradicand galvanic stimulation, so that after about ten days themuscles cannot be stimulated through the nerve. 3. At the same time the muscles gradually lose theirfaradic irritability, but become superexcitable to gal-vanism, and exhibit the serial and modal changesalready mentioned, viz., the anode takes the place of thekathode, and the contractions become sluggish and pro-longed. 4. After about six weeks the galvanic superexcitabilitygradually diminishes, until eventually little or no contrac-tion can be obtained with the strongest currents. TheA.C.C. remains the longest. If the case, however, recovers, voluntary motion usuallyreturns first, closely followed by the electrical irritability ;the kathode resumes its proper position, and the modalchanges disappear. Pathologically. I. The effect of the lesion is to cause progressive de-generation of the nerve structure ; this interferes with the 12^456789 10 II 12 weeks. Motility

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I Fig. 114.—Scheme of the Reaction of Degeneration. Slight form with recovery of motor power at the sixth week. Thedotted Hne represents the voluntary motility; the star indicatesthe return of motor power (after Erb). conduction of electrical stimuli, and eventually leads tocomplete loss of the nerve irritability. 2. The disappearance of the muscular irritability tofaradism corresponds to degeneration of the intra-muscular nerve fibrils and motor end plate (vide p. 184).(Liebig and Rohe do not accept this view.) 2i8 A Manual of Practical Medical Electricity 3, The serial and modal changes are due to degenerationof the muscular substance itself. (Loss of striation, pro-liferation of nuclei, etc.) 10 15 20 25 30 35 40 45 50 weeks. MotilityI f Galv.5 VFarad. J3 -! farad, ex-^ V citability iHUnililiiiiM Fig. 115.—Scheme of the Reaction of Degeneration. A severe form in which motor power was not recovered for thirtyweeks (after Erb). 4. The gradual diminution and loss of the muscularir

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ein Handbuch der praktischen medizinischen Elektrizität Buchillustrationen Medizin medizinische Illustrationen Krankengeschichte Geschichte der Technologie elektrische Energie Elektrizität Röntgen röntgen medizinische Therapie Elektrotherapeutika Bilder aus dem Internetarchiv
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1902
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Open Knowledge Commons and Harvard Medical School
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ein Handbuch der praktischen medizinischen Elektrizität Buchillustrationen Medizin medizinische Illustrationen Krankengeschichte Geschichte der Technologie elektrische Energie Elektrizität Röntgen röntgen medizinische Therapie Elektrotherapeutika Bilder aus dem Internetarchiv