Dendritic spines are functional protrusions on neuron dendrites and generally act as postsynaptic sites to form integral synapses with axon terminals.
树突棘是神经元树突上的功能性突起结构，通常作为突触后成份与投射来的轴突共同构成完整的突触连接。
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The membrane of a neuron is mainly composed of the following three parts:the postsynaptic membrane, the somatic membrane and the membrane of the initial segment.