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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    in the blood and tissues, where it is always found in considerable quantities. The proportion of carbonic acid contained in the venous blood varies still more. According to Zuntz, the venous blood of the right heart contains 8.2 per cent, of carbonic acid more than the arterial blood. The average quantity is about forty volumes per cent. In the blood of the asphyxiated Holmgren found even 69.21 volumes per cent, of carbonic acid. Almost all the oxygen in the blood is loosely held by the oxyhemoglobin, and only a small portion—0.26 per cent.—is absorbed by the plasma or serum. The circulating blood does not appear to carry oxygen entirely up to the point of saturation. Of the carbonic acid found in the blood, the smaller portion — ac- cording to the examinations of Alex. Schmidt, Zuntz, and L. Frederiks at least one-third—is contained in the blood-corpuscles, by far the larger quantity being carried by the plasma and serum. The carbonic acid in the blood-corpuscles forms a loose chemical union, first with the [4]