The principles and practice of veterinary surgery / by William Williams.

  • William Williams
Date:
1904
Catalogue details

Licence: In copyright

Credit: The principles and practice of veterinary surgery / by William Williams. Source: Wellcome Collection.

    39/840 (page 13)
    Virchow is also of opinion that there is no inflammatory exuda- tion at all, in the sense in which it has usually been assumed to exist, but that the exudation is essentially composed of the material which has been generated in the inflamed tissue itself, through the change in its condition, and of the transuded fluid derived from the vessels. If a part possesses a great number of vessels, particularly if they are superficial, it will be able to furnish an exudation. If this is not the case, there will be no exudation, but the whole process will be limited to the occur- rence in the real substance of the tissue of the special changes which have been induced by the inflammatory stimulus; and he concludes by stating that every parenchymatous inflamma- tion has, from its outset, a tendency to alter the histological and functional character of an organ. Every inflammation with free exudation in general affords a certain degree of relief to the part; it conveys away from it a great mass of the noxious matters with which it is clogged, and the part therefore appears com- paratively to suffer much less than that which is the seat of a parenchymatous disease. Of the former (the parenchymatous) he gives an example in Fig. 3. Parenchymatous Keratitis. At A the cornea corpuscles are seen in a near y normal condition, at B enlarged, at C and D still more enlarged, anti at the same time clouded. 350 diameters.—(Virchow.) inflammation of the cornea; and of the latter form of inflam- mation we have an example as it occurs in mucous membranes.