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早已明确生理上体灌的调节是由中枢神经控制的,其中最主要的是大脑视丘下部。最近,美英两国的生理学家在对被麻醉的动物视丘下部进行的实验中,为探明种种神经细胞的功能作了记录。结果表明,视丘下部的神经细胞中约10—20%具有感觉温度的功能。视丘下部感觉温度的神经细胞可分为两类:①对温度升高敏感的神经细胞以及②对温度下降敏感的神经细胞。这种区分仅仅是生理功能上的不同。目前在形态学上尚不能将它们明确划分。某医学研究所最近的实验表明,外界温度的变化
Has long been clearly physiological regulation of body irrigation is controlled by the central nervous system, the most important of which is the lower part of the brain hypothalamus. Recently, physiologists in the United States and Britain documented the function of various nerve cells in experiments conducted in the lower part of the hypothalamus of anesthetized animals. The results show that about 10-20% of neurons in the hypothalamus have sensory temperature functions. Neurons in the hypothalamus that sense temperature can be divided into two categories: nerve cells that are sensitive to temperature rise, and nerve cells that are sensitive to temperature declines. This distinction is merely a physiological difference. At present, they can not be clearly defined in morphology. A recent experiment by a medical institute shows that the outside temperature changes