ISSN:
1573-9007
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The effects of TEA, 4-AP, Co++, Cd++, Cs+, EDTA, and verapamil on the sensory epithelium of ampullae of Lorenzini were studied inRaja clavata (Black Sea skate). During voltage clamping, transepithelial application of TEA to the basal surface caused oscillations in transepithelial potentials in response to presentation of an excitatory stimulus, which had been suppressed by Co++, Cd++, and EDTA. Application of Cs+ was followed by complete or partial suppression of spike response adaptation. When applied to the apical epithelial surface, TEA produced an increase in spike response to stimulation and highly accelerated adaption. No substantial changes took place after apical application of Co++, Cd++, and verapamil. The mechanisms of these phenomena are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01052184
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