[Characteristics of skin thermo-mechano-sensitive receptors in animals and man].

Abstract

Changes in impulse activity of afferent fibres of the spinal dorsal roots connected with thermal receptors of cat's skin have been studied during acute experiments. Thermal sensitivity of the man skin has been studied in psychophysical experiments. Three types of reactions of fibers from heat receptors of the animal skin and two types from cold ones are obtained. All of them are mechano-sensitive reactions. They differ from each other in the depth of changes in frequency of average impulse activity, dynamic sensitivity, latent period of the reaction as well as in thresholds of thermal and mechanic sensitivity. It is supposed that there exists certain analogy between thermoreceptors of animals and men.