Summary
The intracellular potassium and sodium concentrations of the lobster circumesophageal axon was measured with an ultramicro integrative flame photometer. The average concentration of 376.1 mM/l vol for potassium and 63.8 mM/l vol for sodium that was determined was correlated with electrophysiological data. The large scatter of the concentration in individual axons is compared with measurements by other investigators and is discussed.
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The work of the Laboratory of Neurophysiology is supported in part by grants from the Muscular Dystrophy Associations of America; by Public Health Service Research Grants (NB 03728) and Training Grant (NB 05328), from the National Institute of Neurological Diseases and Stroke; and from the National Science Foundation (GB 6988X). Dr. Freeman was a Postdoctoral Trainee Fellow In Neurophysiology.
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Katz, G.M., Freeman, A.R. The scatter of intracellular ionic concentration in the lobster circumesophageal axon. J. Comp. Physiol. 81, 89–98 (1972). https://doi.org/10.1007/BF00693552
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DOI: https://doi.org/10.1007/BF00693552