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Science 23 June 1972:
Vol. 176. no. 4041, pp. 1329 - 1330
DOI: 10.1126/science.176.4041.1329
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Articles

Low Internal Conductivity of Aplysia Neuron Somata

Martin M. Hovey 1, Anthony F. Bak 1, and David O. Carpenter 1

1 Laboratory of Neurophysiology, National Institute of Mental Health, Bethesda, Maryland 20014

The internal conductivity of Aplysia neuron somata was measured by passing constant current pulses across a calibrated four-electrode array. The intracellular medium is less than one-tenth as conductive as seawater. The low conductivity probably results from structured cell water since ions are present in quantity and do not appear to be bound.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)