PROPERTIES OF THE RECEPTOR POTENTIAL IN PACINIAN CORPUSCLES
PROPERTIES OF THE RECEPTOR POTENTIAL IN PACINIAN CORPUSCLES
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DOI：
10.1113/jphysiol.1953.sp005025
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发表时间：
1953-01-01
影响因子：
5.5
通讯作者：
SATO, M
中科院分区：
文献类型：
--
作者：
GRAY, JAB;SATO, M
本文报道了一种记录环层小体轴突上沿着第一段髓鞘电流的方法，记录到的一个方向的偏转可能代表环层小体内无髓鞘终末的活动，而另一个方向的偏转可能代表第一节及以后各节的活动。在一个新的记录中可以看到三个阶段，用快速机械脉冲刺激;（1）受体电位，按刺激强度分级，（2）在环层小体中轴突末端发生的冲动，和（3）第一朗维尔结的活动。轴突末端的冲动可被amt消除。普鲁卡因不足以引起受体电位的很大变化。感受器电位相加。考虑了可能的机制。
A method of recording the current flowing along the 1st segment of myelin on an axon from a pacinian corpuscle is descr. Deflections recorded in 1 direction probably represent activity of the non-myelinated terminal in the corpuscle, while those in the other, acitivity at the 1st and subsequent nodes of Ranvier. Three phases are seen in records from a fresh prepn., stimulated with a rapid mechanical pulse; (1) a receptor potential, graded to stimulus strength, (2) an impulse occurring at the axon terminal in the pacinian corpuscle, and (3) activity of the 1st node of Ranvier. The impulse at the axon terminal can be abolished by an amt. of procaine insufficient to cause much change in the receptor potential. Receptor potentials summate. Possible mechanisms are considered.