Modulation of swimming behavior in the medicinal leech. 2. Ionic conductances underlying serotonergic modulation of swim-gating cell 204

We investigate the ionic basis of these changes by comparing responses of cell 204 to injected current pulses in experimental salines containing modified concentrations of Na super(+), K super(+), Ca super(2+), or Cl super(-). Our data indicate that serotonin modulates multiple conductances in cell...

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Bibliographic Details
Published in:Journal of Comparative Physiology, A A, 1993-03, Vol.172 (2), p.235-248
Main Authors: Angstadt, J D, Friesen, W O
Format: Article
Language:English
Subjects:
Freshwater
Hirudinea
Hirudo medicinalis
Online Access:Get full text
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Summary:We investigate the ionic basis of these changes by comparing responses of cell 204 to injected current pulses in experimental salines containing modified concentrations of Na super(+), K super(+), Ca super(2+), or Cl super(-). Our data indicate that serotonin modulates multiple conductances in cell 204. Hyperpolarizing rebound responses following depolarizing current pulses are composed of Na super(+)-dependent and Na super(+)-independent components, both of which are enhanced by serotonin.
ISSN:0340-7594
DOI:10.1007/BF00189399