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STUDIES IN SATURATION OF THE TISSUES WITH GASEOUS NITROGEN.—I. RATE OF SATURATION OF GOAT'S BONE MARROW IN VIVO WITH NITROGEN DURING EXPOSURE TO INCREASED ATMOSPHERIC PRESSURE
Author(s) -
Campbell J. Argyll,
Hill Leonard
Publication year - 1933
Publication title -
quarterly journal of experimental physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0370-2901
DOI - 10.1113/expphysiol.1933.sp000594
Subject(s) - nitrogen , saturation (graph theory) , bone marrow , chemistry , atmospheric pressure , diffusion , zoology , analytical chemistry (journal) , radiochemistry , medicine , environmental chemistry , biology , thermodynamics , meteorology , physics , mathematics , organic chemistry , combinatorics
1. The rate of saturation of bone marrow with gaseous nitrogen in goats breathing air at +3 atmospheres pressure has been studied. It is 25 per cent. saturated in 1 hour, 60 per cent. in 4 hours, and about 90 per cent. in 8 hours, when the fat content of the marrow is about 90 per cent. 2. This slow rate is shown to be due to (a) low circulation rate through marrow, (b) high fat content diminishing the rate of diffusion. 3. Some data re saturation at some other pressures, e.g. + 1 and + 2 atmospheres, are also recorded. The nitrogen content depends upon the fat content of the marrow, the excess pressure and time of exposure to this pressure.