A probationary essay on the formation of new blood-vessels : submitted, by the authority of the President and his Council, to the examination of the Royal College of Surgeons of Edinburgh, when candidate for admission into their body, in conformity to their regulations respecting the admission of ordinary Fellows / by Allen Thomson.

  • Thomson, Allen, 1809-1884.
Date:
[1832]
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Licence: Public Domain Mark

Credit: A probationary essay on the formation of new blood-vessels : submitted, by the authority of the President and his Council, to the examination of the Royal College of Surgeons of Edinburgh, when candidate for admission into their body, in conformity to their regulations respecting the admission of ordinary Fellows / by Allen Thomson. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    tirely separated from the body undoubtedly occurs, and that this may even be effected in parts transferred from one region of the body to another, provided the textures to be united are not very dissimilar, and that other circum- stances connected with the internal condition of the indivi- dual, the state of the weather, &c. are favourable.^ The re- union of parts entirely separated, like the reproduction of parts that have been removed, seems to take place more readily in simple than in complicated textures. In the hu- man body, it must, however, on the whole, be considered as of very rare occurrence, and consequently the circumstances which are favourable or necessary to its success have not as yet been fully investigated. In the higher animals, the power which divided surfaces of parts still attached to the body have of uniting with one another, is considerable; and the study of the best means of promoting such reunion, forms a very important topic of surgical inquiry. The phenomena attending the reunion of divided surfaces were comprehended under the general term of Adhesion, by Mr John Hunter, to whom we are indebted for the first systematic and philosophical account of this pro- cess, and for very valuable experimental researches into its nature. It is my intention, in the following pages, to endea- vour to describe some of the more important phenomena that can be detected during the organization of the new products by which the process of adhesion is effected. In doing so, I shall confine my remarks principally to some parts of the subject that have been mentioned by systematic * See the works on Reproduction and Repair already quoted; also Hun- ter on Inflammation, p. 208. Thomson's Lectures on Inflammation, p. 224. WiESEMANN, De Coalitu partium prorsus a corpore disjuncta- rum, Leipzig, 1824. Dieffenbach, Diss. Inaug. Nonnulla de Regene- ratione et Transplantatione, Herbip. 1822; and j3so papers by him in the Journal Complement. Most of the cases which have occurred in man have been related in these works, more especially in Thomson's Lectures and Wiesemann's Dissertation. See also the experiments and observations of Tahacotuts, Garengeot, DtiHAMEL, Murray, Huhn, Balfour, J. Hunter, Baronio, Gr^fe, Gendrin, &c.