File:Diseases of the nervous system - for the general practitioner and student (1913) (14786202683).jpg

Identifier: diseasesofnervou00gord (find matches)
Title: Diseases of the nervous system : for the general practitioner and student
Year: 1913 (1910s)
Authors: Gordon, Alfred, 1869-1953
Subjects: Nervous System Diseases
Publisher: Philadelphia : Blakiston's Son
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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Fig. 123.Letters C, D, L and S indicate respectively cervical, dorsal, lumbar and sacral roots. Etiology.—Infections, intoxications and local factors are the chiefcauses of peripheral neuritis. Microbes or their toxins in infectiousdiseases frequently produce a multiple neuritis, but they may also be thecause of a localized neuritis. An infected wound is likely to set up an NEURITIS 38l inflammation of a nerve. Trauma sets up an inflammation, which mayinvolve also a nerve. An inflammation of a finger may extend to a nerveor nerves of the arm (ascending neuritis). In such cases the neuritis is anupward extension of an inflammatory or septic process along a nerve ornerves. Suppurating joint or acute synovitis, diseases of bones (fracture,
Text Appearing After Image:
Fig. 124.Letters C, D, L and 5 indicate respectively cervical, dorsal, lumbar and sacral roots. tumor, caries), dislocations may produce a neuritis in the immediateneighborhood. Diphtheria, syphilis, cancer, tuberculosis may set up atoxic neuritis. Neuritis due, so to speak, to cold is often of toxic or infec-tious nature. Intoxications with alcohol, metals, carbonic acid, may pro-duce a localized neuritis. In the course of diabetes, gout, chronic rheu- 382 NEURITIS matism, not infrequently a neuritis (sciatica for example) is observed;autointoxication is probably the immediate cause. Finally neuritismay be the result of localized ischemia or anemia caused by partial orcomplete blocking of an artery such as embolus. Symptoms.—In diseases of peripheral nerves sensory disturbancesare very conspicuous. The adjoining plates will render considerableassistance in the study of various sensory areas (Figs. 120, 121,122, 123 and124). The main sign of an inflammation of a nerve is pain. It is

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