On malformations of the human heart, etc : With original cases and illustrations / by Thomas B. Peacock.
- Thomas Bevill Peacock
- Date:
- 1866
Licence: Public Domain Mark
Credit: On malformations of the human heart, etc : With original cases and illustrations / by Thomas B. Peacock. Source: Wellcome Collection.
Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.
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![Bischofi], into—1st. Malformations whicli deviate quantita- tively from the type of their kind; and, 3ndly. Those which differ qualitatively. The former he subdivides into anoma- lies consisting in defective and excessive development as to number and size; the latter he further distributes into deviations of form and position, and irregularities of the large vessels. The defective developments he classes under the heads of—a. entire defects; h. imperfect formations; c. abnormal smallness; d. obliteration of the passages or vessels, and e. fissure formations. In the present edition of this work, I have adhered to the arrangement of the misplacements of the heart proposed by M. Breschet; treating, first, of the cases in which the organ does not occupy its proper position within the thorax; and, secondly, of those in which, from defect in some por- tion of the parietes, the heart is situated wholly or in part external to the thoracic cavity. I have, however, followed Dr. Alvarenga' in the employment of terms, in some cases different from those of M. Breschet. Of the malformations of the heart itself, I adopted, in the former edition, an arrangement founded partly on the period at which the development of the organs becomes arrested or perverted, and partly on the degree of impedi- ment to the circulation which such deviation occasions, and the consequent interference with the functions of the heart after birth. To this arrangement, though with some modi- fication as to details, I still adhere. See paper read before the Academy of Sciences in Lisbon, 1866.](https://iiif.wellcomecollection.org/image/b21071676_0015.jp2/full/800%2C/0/default.jpg)
