[Recovery of colchicine-blocked chemoreceptor reactions of the frog tongue as affected by electrical stimulation of the sympathetic nervous system].

Under adequate stimulation of tongue chemoreceptors with feeds synchronous recording of the total afferent impulse activity of the glossal branches of Rana temporaria glossopharyngeal nerves was used to demonstrate the facilitation effect of electric stimulation of the I sympathetic ganglion on the receptor reactions in health and after treatment with colchicine provoking a considerable weakening of the reactions. The data are discussed in the light of the adaptation-trophic effect of the sympathetic system at the level of molecular-metabolic intracellular processes. No poisoning effect of alkaloid on the sympathetic fibers has been recorded.