3树突 Dendrite:-个 或多个。较短有且支 多。无G。表面有小突 起,称树突棘( Dendritic spines),是接受冲动 Insulation 的重要结构。 around nerve fibre Main fibre (axon)of nerve cell Body of nerve cell Axon bulb Cell body Connecton or between nerve ce Dendrites receive nerve signals from other nerve cells 99 3. 树突(Dendrite): 一个 或多个。较短有且支 多。无G。表面有小突 起，称树突棘(Dendritic spines )，是接受冲动 的重要结构