Spatial map of salts and saccharides on dog tongue.

Journal Article (Journal Article)

Front and rear regions of dog tongue were tested for spatial heterogeneity with respect to monovalent chloride salts (NaCl, KCl, and NH4Cl) and sweet tastants (sucrose, D-glucose, and L-glucose) by placing them in Ussing chambers where the open-circuit potential, Voc, and short-circuit current, Isc, were measured. The responses of Voc and Isc to 0.5 M NaCl were greater in the front of the tongue than in the rear, whereas the responses of Voc and Isc to 0.5 M sucrose were greater in the rear of the tongue than in the front. These results are similar to those of published neurophysiological measurements from the chorda tympani nerve and thalamus. These data suggest that the spatial heterogeneities seen in higher taste centers are present in the isolated lingual epithelium where primary taste transduction events occur.

Full Text

Duke Authors

Cited Authors

  • Garvin, JL; Robb, R; Simon, SA

Published Date

  • July 1988

Published In

Volume / Issue

  • 255 / 1 Pt 2

Start / End Page

  • R117 - R122

PubMed ID

  • 3394833

International Standard Serial Number (ISSN)

  • 0002-9513

Digital Object Identifier (DOI)

  • 10.1152/ajpregu.1988.255.1.R117


  • eng

Conference Location

  • United States