A Practical Treatise on the Diseases of the Heart and Great Vessels, Including the Principles of Physical Diagnosis (Classic Reprint)
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| Hersteller: | Forgotten Books (Walshe, Walter Hayle) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from A Practical Treatise on the Diseases of the Heart and Great Vessels, Including the Principles of Physical Diagnosis 1. The heart, seated in the lower part of the anterior mediastinum, is held in situ directly by the great vessels, arterial and venous, and, indirectly, through the pericardium, by the diaphragm. These attachments, fixing the base only of the heart, permit free play to its general mass, which in point of fact hangs loosely in the pericardial sac. This looseness of attachment, and this freedom of movement, essential to the physiological well-being of the organ, entail a specific inconvenience in the extreme facility with which the heart, in this respect almost rivalling the uterus, undergoes various displacements. 2. Lying obliquely (with its long axis directed forwards, downwards, and from right to left, at a slightly varying angle, with the mesial plane), the base of the organ corresponds, anteriorly, to both third costal cartilages, and the apex to the sixth left costal cartilage; while, posteriorly, the upper edge of that base lies opposite the fourth, the lower opposite the seventh, or even the eighth dorsal vertebra, separated from the spine by the aorta and oesophagus. A line, carried horizontally backwards from the apex, falls in the majority of adult males on a spot seated less than two inches to the left of the body of the eighth dorsal vertebra. 3. The postero-inferior surface of the organ, somewhat flattened, rests upon the central tendon of the diaphragm; the supero-anterior lies in apposition partly with the left and right lung, partly, between these organs and especially at its lower part, with the walls of the chest. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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