ACTION POTENTIALS OF COLD FIBRES AND INTRACUTANEOUS TEMPERATURE GRADIENT
ACTION POTENTIALS OF COLD FIBRES AND INTRACUTANEOUS TEMPERATURE GRADIENT
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DOI：
10.1152/jn.1951.14.5.377
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发表时间：
1951-01-01
影响因子：
2.5
通讯作者：
ZOTTERMAN, Y
中科院分区：
文献类型：
--
作者：
HENSEL, H;ZOTTERMAN, Y
舌神经的小束，为猫舌头背部的小范围区域提供冷感觉纤维，被先前的一项研究分离出来。方法。用冷刺激舌头背侧引起的电位与用冷刺激腹侧引起的电位进行了比较。在一种情况下，受体从上面冷却，在另一种情况下从下面冷却，提供了一个机会来测试有关皮内温度梯度重要性的理论。受体显然根据冷却的程度作出反应，而不考虑周围组织的梯度。冷感受器被干扰素激活。冰冷的阳光，射入舌动脉。一些专家认为，血管因素在表面冷却法获得的结果中起作用的可能性是由舌动脉闭塞控制的。
Small strands of the lingual nerve, supplying fibers for cold sensation to small circumscribed areas of the dorsum of the cat''s tongue, were isolated by a previously descr. method. Potentials elicited in these fibers by application of a cold stimulus to the dorsum of the tongue were compared with those elicited by cold applications to the ventral surface. In the one instance the receptors were cooled from above, and in the other from below, providing an opportunity to test theories as to the importance of the intracutaneous temp. gradient. The receptors apparently react according to the degree of cooling regardless of the gradient in the surrounding tissues. The cold receptors were activated by injn. of cold soln. into the lingual artery. The possibility that vascular factors played a role in the results obtained by the method of surface cooling was controlled by occlusion of the lingual arteries in some expts.