The bronchi and pulmonary blood-vessels : their anatomy and nomenclature, with a criticism of Professor Aeby's view on the bronchial tree of mammalia and of man / by William Ewart.
- William Ewart
- Date:
- 1889
Licence: Public Domain Mark
Credit: The bronchi and pulmonary blood-vessels : their anatomy and nomenclature, with a criticism of Professor Aeby's view on the bronchial tree of mammalia and of man / by William Ewart. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
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![of the more important brouclu. But in the attempt to deal witli the much larger subject of the aiiatomy of the bronchial system the same need was experienced, with yet greater urgency. A successful study of the bronchial tree was found to be impossible without the assistance of names identifying the many structures under consideration. Indeed, it may be said that the need for a nomenclature was never more acutely felt than during the pro- gress of its elaboration. As regards the Pulmonary Blood-vessels, the practical importance of distinguishing by separate names their several trunks was recognised as being hardly second to the importance of the nomenclature of the bronchi themselves. A separate nomenclature of the Bronchial Blood-vessels is not The i.ron- required, although their anatomy may, in the future, require a little more vessels, detail than is generally allotted to them in the text-books. Several dissections of these vessels were made by me, but I refrained from attempting their injection, and I have nothing to add to the description usually given of them. In spite of the great theoretical interest which attaches to the study of this special circulation, inasmuch as it offers little promise of any practical usefulness, its comparative neglect in these pages may perhaps not be considered a serious gap. The whole nomenclature is contained, in a condensed form, in the Synoptical synoptical tables which occur in the anatomical section of the book. In the construction of the tables an endeavour has been made to convey some idea of the relations existing between the air-tubes. Throughout these pages, in view of the amount of detail involved in the Marginal descri^Dtions, marginal notes have been introduced. These will facilitate reference, whilst serving as a running summary. A similar purpose explains the extensive use of black type in the impression. The advantage likely to accrue to the reader from the clearness and the boldness of this type in so intricate a study as the present one, greatly outweighs the disfigurement of the book which has been entailed thereby. The illustrations included in this volume are of three kinds :— The illus- trations. (1) Photographic reproductions of dissections and of bronchial casts ; (2) Artists' drawings from the bronchial casts, and from the combined casts of the bronchi and pulmonary blood-vessels; (3) Diagrams constructed from the dissections and from the metallic casts. I should have gladly relied upon the exclusive use of the photographic oii]ec(ior.s method for the sake of its automatic accuracy. But in the case of the p'J„';to. bronchial casts, which possess considerable depth, this advantage is counter- srapi^jc balanced by the inability of the process to do even justice to the repre-](https://iiif.wellcomecollection.org/image/b21518701_0027.jp2/full/800%2C/0/default.jpg)
