Cells in cns dendrite nuc eus Neuron glia cells(astrocyte oligodendrocyte ependyma) axon astrocyte blood vessels microglia Neuropil pI 神经毡 process of the cells in the CNs to form a delicate fibrillary backgroundCells in CNS Neuron glia cells (astrocyte oligodendrocyte ependyma) blood vessels microglia Neuropil 神经毡 process of the cells in the CNS to form a delicate fibrillary background