Calcium currents in internally perfused nerve cell bodies of Limnea stagnalis

AUTOR(ES)

Byerly, Lou

RESUMO

1. When K+ is removed from both sides of the somal membrane of Limnea neurones, time-dependent, voltage-dependent outward currents are observed at positive potentials. These currents can be carried by Tris+ and tetraethylammonium (TEA+), as well as Cs+, but the Cs currents are several times larger. The Cs currents are not affected by external or internal TEA, but are strongly reduced by 4-aminopyridine (4-AP) and all Ca blockers tried.

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