Notes on surgery for nurses / by Joseph Bell.

  • Bell, Joseph, 1837-1911.
Date:
1895
Catalogue details

Licence: Public Domain Mark

Credit: Notes on surgery for nurses / by Joseph Bell. Source: Wellcome Collection.

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    CHAPTER III. ULCERATION. HE next stage of the inflammatory process we come to is Ulceration. So far as we destruction of tissue, for a long-continued sup- puration may not leave any permanent loss of substance. Ulceration and gangrene, however, imply loss of tissue, and they differ from each other only in degree. Ulceration we may define as a molecular death, a loss of substance in fragments invisible to the naked eye; while gangrene is the same form of death detaching visible fragments, varying from the small slough in the centre of a boil up to a whole limb in which the artery has been occluded. A simile may explain this: every wave and every tide are surely and slowly wearing away the chalk cliffs of our south coast in unnoticed, because almost invisible, detritus—that is ulcera- tion ; a great gale comes with a spring tide, and have gone we have not necessarily had any