Carbonic acid in medicine / by Achilles Rose, M.D. ; with the portraits of van Helmont, Priestley and Lavoisier.

  • Achilles Rose
Date:
1905
Catalogue details

Licence: Public Domain Mark

Credit: Carbonic acid in medicine / by Achilles Rose, M.D. ; with the portraits of van Helmont, Priestley and Lavoisier. 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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    as that in the plasma; it exists there in combi- nations which depend to a high degree on par- tial pressure. As we see from the foregoing, quite a number of elements act together with carbonic acid, making it apparently impossible to decide the quantitative part of each single factor in the entire effect. It is of great importance to know the amount of tension of oxygen and of carbonic acid in the blood, in order to decide the question of the exchange of gases between the blood and the alveolar air on the one hand, and the blood and the tissues on the other; and especially to de- cide how far this exchange of gases takes place under the law of diffusion, and how far other forces may be active. The change of gases in the tissues, the so- called internal breathing, takes place in the following manner: Oxygen leaves the capillaries to enter into the tissues, and simultaneously the main mass of the carbonic acid of the blood which is derived from the tissues leaves the lat- ter and enters into the capillaries. The change of blood in the lungs, the so-called external [9]