哺乳动物的无髓鞘神经纤维（C纤维）是传导伤害性刺激信息的主要途径，由于直径多数小于lpm，至今尚无适当的方法深入了解其动作电位的离子机制。最近，我们利甲自行设制的神经纤维微浴法（胡三觉等，第四军医大学学报，1994，15，36-39）观察了不同溶液成分浸溶神经细束后，对 Mammalian myelinated nerve fibers (C fibers) are the primary pathway for the transmission of nociceptive information. As the majority of diameters are less than 1 μm, there is currently no suitable way to gain insight into the ionic mechanism of action potentials. Recently, we set up a self-designed micro-bath of nerve fibers (Hu Sanjue et al., Fourth Military Medical University, 1994,15,36-39) observed the different solution components after the dissolution of nerve fibers, the