Licence: In copyright
Credit: A manual of general pathology for students / by Sidney Martin. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
499/534 (page 473)
![symmetrical. In alcoholic neuritis, the nerves specially affected are those of the extensors of the ankle, causing dropping of the foot. Both in lead poisoning and in alcoholism other parts may be affected. Thus, in lead poisoning a general affection of the nerves may be present, or the nerve cells of the brain may be affected, as in encephalopathia saturnina. In chronic alcoholism, again, the neuritis may be general, and there is a distinct effect frequently on the cells of the spinal B. Fig. 120.—Nerve degeneration in diphtheria (experimental). A. is a bundle of fibres in tlie phrenic nerve of a rabbit, paralysed by the intravenous injection of extract of diplitheritic membrane. Tlie wliite .slieath is broken up irregularly, and has in part disappeared. In one fibre the axis cylinder is seen intact. B. Portion of a single nerve libre from the nerve to the vastus in a rabbit ]iaralysed by the intravenous infection of albumoses from a case of diplitheria. There is disappearance of the wliite substance on each side of a node, while the axis cylinder is ruptured and has become tortuous. stained with osmic acid. cord, which show vacuolation and increased pigmentation, as well as on the cells of the brain. It is thus evidenced that, although the poison may select some particular nerve for its action, yet this selection is only part of a general intoxication, and is possibly determined by occupation, as, for example, occurring in plumbism in the arms of painters, and in alcoholic neuritis in the legs, which bear more stress than the arms. Moderate degrees of neuritis, such as occur in neuritis from arsenic medicinally administered, or in diabetes, affects the legs more than the other parts of the body; and in](https://iiif.wellcomecollection.org/image/b21932268_0511.jp2/full/800%2C/0/default.jpg)
