Abstract
IN earlier work it was shown that the exchanges of sodium and potassium ions between the hæmolymph and the central nervous system of the cockroachoccurred relatively rapidly1. It was concluded from these results that the connective tissue layer surrounding the nervous system did not function as a significant diffusion barrier and that in such a dynamic system any selective permeability must be attributed to the underlying cellular layer of the nerve sheath or some associated elements.
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References
Treherne, J. E., J. Exp. Biol., 38, 315 (1961).
Hodgkin, A. L., Proc. Roy. Soc., B, 148, 1 (1958).
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TREHERNE, J. Exchanges of Sodium Ions in the Central Nervous System of an Insect (Periplaneta americanaL.). Nature 191, 1223–1224 (1961). https://doi.org/10.1038/1911223b0
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DOI: https://doi.org/10.1038/1911223b0
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