Physical diagnosis of diseases of the chest / by Richard C. Cabot.

  • Richard Clarke Cabot
Date:
1903
Catalogue details

Licence: Public Domain Mark

Credit: Physical diagnosis of diseases of the chest / by Richard C. Cabot. 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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    INTRODUCTION. 6 student. The only points which it is necessary to memorize once for all are : 1. The position of the heart, lungs, liver, and spleen with ref- erence to the bones of the chest. 2. The position of certain points which experience has taught us have a certain value in physical diagnosis. I mean (a) the so-called valve areas of the heart, which do not correspond to the actual position of the valves, for reasons to be explained later Right lung. „_]__ Right auricle. Liver. Upper lobe of left lung. Left ventricle. Lower lobe of left lung. - Stomach. Fig. 2.—Position of the Heart. Lungs, Liver, and Stomach. The dotted lines correspond to the outlines of the lung : the heavy continuous line represents the heart; while the position of the liver and of the lower border of the stomach is indicated by light continuous lines. The ribs are numbered. on, and (b) the percussion outlines of the heart, liver, and spleen. These outlines do not correspond in size with the actual dimensions of the organs within, yet there is a definite relation between the two which remains relatively constant, so that we can infer the size of the organ itself from the outlines which we determine by percus- sion. The position of the organs themselves is shown in Figs. 2, 3, and 4. It will be noticed in Fig. 2 that the lungs extend up above the clavicles and overlap the liver and the heart—facts of considerable importance in the physical examination of these or- gans, as will be later seen. It is also to be noticed how small