Summary
A study was made of the gaseous exchange between the cavity of the small intestine and the blood flowing from it in the mesenteric veins. The gaseous composition of the blood in the mesenteric veins was examined after air or nitrogen introduced into the intestine had reached a constant composition. The oxygen tension in the venous blood was always 15–35 mm Hg higher than that in the intestinal lumen. The oxygen tension in the intestine remained very low despite the abundant blood supply.
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Gurskaya, N.V., Ivanov, K.P. Gaseous equilibrium between blood and the lumen of the intestine. Bull Exp Biol Med 50, 910–912 (1961). https://doi.org/10.1007/BF00797477
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DOI: https://doi.org/10.1007/BF00797477