 00 mM KCl + 00% ethanol + 0.0 μM SB-000000 (R + ETH + SB). The time period at which the rat tongue was superfused with different solutions is indicated by arrows. (B) CT response was monitored while the rat tongue was first rinsed with 00 mM KCl (R) and then stimulated with 00 mM KCl + 00