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. 1984 Jun;351:87–98. doi: 10.1113/jphysiol.1984.sp015234

Some properties of excitatory junction currents recorded from submucosal arterioles of guinea-pig ileum.

A S Finkel, G D Hirst, D F Van Helden
PMCID: PMC1193106  PMID: 6086906

Abstract

Excitatory junction potentials and excitatory junction currents have been recorded from short segments of arterioles taken from the submucosa of guinea-pig small intestine. Excitatory junction currents reached their peak amplitudes by 20 ms and then decayed, with a time course that could be described by a single exponential (mean time constant of decay approximately 50 ms). The null potential for excitatory junction currents obtained by extrapolation was near 0 mV. The time course of excitatory junction currents failed to show voltage sensitivity. Spontaneous excitatory junction currents had the same time course as evoked currents; the amplitudes of spontaneous currents were less than an order of magnitude different from that of evoked currents.

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Selected References

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