. Comparative animal physiology. Physiology, Comparative; Physiology, Comparative. Respiration and Metabolism 249 at high tensions is highest for animals maintained at 4° C. and lowest for those kept at 30° C, the rate of oxygen consumption is the same for all when measured at 35-40 mm. Hg oxygen tension (Fig. 56). The oxygen tension necessary to maintain a constant body temperature of 37° in mice at 30° C. air temperature is 64 mm. I Ig; at 20° it is 97 mm. Hg, and at 4° it is 155 mm. Hg. At lower tensions the body temperature Fig. 57. Curves showing the least tolerable oxygen conc
. Comparative animal physiology. Physiology, Comparative; Physiology, Comparative. Respiration and Metabolism 249 at high tensions is highest for animals maintained at 4° C. and lowest for those kept at 30° C, the rate of oxygen consumption is the same for all when measured at 35-40 mm. Hg oxygen tension (Fig. 56). The oxygen tension necessary to maintain a constant body temperature of 37° in mice at 30° C. air temperature is 64 mm. I Ig; at 20° it is 97 mm. Hg, and at 4° it is 155 mm. Hg. At lower tensions the body temperature Fig. 57. Curves showing the least tolerable oxygen concentration as a function of pH for fish: (1) goldfish, (2) yellow perch, (3) and (4) bluntnose minnow, (5) steel- colored minnow, (6) bluegill. Temperatures 18-25° C. From Wiebe et al.™' Effect of pH on Minimum Tension. The minimum oxygen concentration which can be tolerated may vary with the pH, but whether this is an effect of its respiratory stimulating powers or of the ability of the organism to extract oxygen within a limited pH range is uncertain. Probably the respiratory stimu-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Prosser, C. Ladd (Clifford Ladd), 1907-; Bishop, David W. Philadelphia, Saunders
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