Nervous and mental diseases . altt tieaith ^]^^r^_ fi\ro\kii<^ f^oltferd^tioRcf musele, Cirr liosis p^^^. )ic Fig. 14.—1, Paralysis with early return of motion (modified from Erb). 2, Incurable paralysis withcomplete atrophy and degeneration (modified from Erb). where the muscles seem permanently affected, as in the progressiveatrophic myopathies, the responses are reduced, but are proportionate tothe amount of healthy muscular fibers remaining. Some spasmodic con-ditions, like facial tic, present an increased activity to electric is increased electrical ex
Nervous and mental diseases . altt tieaith ^]^^r^_ fi\ro\kii<^ f^oltferd^tioRcf musele, Cirr liosis p^^^. )ic Fig. 14.—1, Paralysis with early return of motion (modified from Erb). 2, Incurable paralysis withcomplete atrophy and degeneration (modified from Erb). where the muscles seem permanently affected, as in the progressiveatrophic myopathies, the responses are reduced, but are proportionate tothe amount of healthy muscular fibers remaining. Some spasmodic con-ditions, like facial tic, present an increased activity to electric is increased electrical excitability in tetany and in Graves dis-ease. In myotonia we encounter a peculiar electrical response calledthe myotonic reaction. In this condition there is normal faradic ex-citability of nerves, but the electrical excitability of the muscles isgreatly enhanced to all forms of current. The positive and negativeclosing galvanic contractions are nearly equal and all responses are tonicand prolonged. The mechanical excitability of the muscles, as toblows, is similarly exaggerated. In myasthenia gravis t
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Keywords: ., bookcentury1900, booksubjectmentalillness, booksubjectnervoussys
