Belousova G P, Glebova N F, Danilova L I, Olimpienko T S
Fiziol Zh SSSR Im I M Sechenova. 1979 Oct;65(11):1648-54.
In anesthetized rabbits, the activity of thermoreceptors, the neuronal activity in the preoptic area of hypothalamus (POAH), and the efferent outflow in sympathetic fibres of the auricular nerve were studied during thermal stimulation of the skin innervated by the trigeminal nerve. Among 79 receptors 8 responded to warming of the skin and 38 responded to cooling with the maximal activity at the skin temperature 22-21 degrees C. The activity of 46 POAH neurons out of 94 correlated with the skin temperature: 34 neurons increased the frequency of firing during cooling and 12 during warming. The firing rate in the sympathetic ganglion cells and postganglionic fibers increased by 50-100% during cooling causing vasoconstriction of the rabbit's ear, while warming of the receptive zone reduced the activity by 56-48% or abolished it, leading to vasodilatation.
在麻醉的家兔身上，研究了三叉神经支配皮肤区域热刺激期间热感受器的活动、下丘脑视前区（POAH）的神经元活动以及耳神经交感纤维的传出冲动。在79个感受器中，8个对皮肤升温有反应，38个对皮肤降温有反应，皮肤温度在22 - 21摄氏度时活动最为强烈。94个POAH神经元中有46个的活动与皮肤温度相关：34个神经元在皮肤降温时放电频率增加，12个在皮肤升温时放电频率增加。冷却过程中，交感神经节细胞和节后纤维的放电频率增加50% - 100%，导致兔耳血管收缩，而感受区升温则使活动降低56% - 48%或使其消失，导致血管舒张。
