A Manual of General Pathology; Designed as an Introduction to the Practice of Medicine

A Manual of General Pathology; Designed as an Introduction to the Practice of Medicine

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 edition. Excerpt: ... though enormously more potent, just as the gland secreting it is the representative of the salivary glands of other animals, and must be regarded as having been produced by evolution from a simple secretion of the same kind. Effects of Absorption.--The poison will be most rapidly absorbed from the wound if a bloodvessel be penetrated; but is absorbed also from serous or mucous membranes, such as the conjunctiva, the stomach, and peritoneum, and by the respiratory membranes if applied there. Passing into the blood it affects nerve-centres, and sometimes the peripheral nerves. The respiratory centre is often affected, and death may be thus caused. The contractility of the muscular fibres may also be affected if the poison be brought in direct contact with them experimentally, or sometimes also through the blood. The poison also acts septically, producing at a later period sloughing and hemorrhage (Fayrer). The blood is found fluid after death from viper-poison; but the effect on the blood of cobra-poison is variable. These results show that snake-poison has the properties both of a structural and a functional poison. The active principle appears to be an albuminous substance which has been called echidnine, vipirine, or crotaline. It has most resemblance to a catalytic ferment, which acts in almost inconceivably small quantities. The blood of poisoned animals is poisonous in proportion to the amount of poison contained in it. There is no evidence that the poison is multiplied or increased in the body. Insect poisons.--The poisonous principles conveyed by the stings of wasps, hornets, bees, etc., with which must be classed those of other poisonous articulata such as scorpions and spiders, reremble snakepoison in producing inflammatory local...show more

Product details

  • Paperback | 256 pages
  • 189 x 246 x 14mm | 463g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236562410
  • 9781236562418