How a Turtle's Shell Helps It Survive Prolonged Anoxic Acidosis.

  title={How a Turtle's Shell Helps It Survive Prolonged Anoxic Acidosis.},
  author={Donald S. Jackson},
  journal={News in physiological sciences : an international journal of physiology produced jointly by the International Union of Physiological Sciences and the American Physiological Society},
  • Donald S. Jackson
  • Published 2000 in
    News in physiological sciences : an international…
Anoxic turtles accumulate high levels of lactate in blood. To avoid fatal acidosis, turtles exploit buffer reserves in their large mineralized shell. The shell acts by releasing calcium and magnesium carbonates and by storing and buffering lactic acid. Together with profound metabolic depression, shell buffering permits survival without oxygen for several months at 3 degrees C. 

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