part of central nervous system neuropil FBbt:00007351 VFB:FBbt_00005139 neuropil FBbt:00005139 Multi-cell component structure of the central nervous system consisting largely of neuron projections (tracts and synaptic neuropil domains) and associated glial cells. This corresponds to the part of the CNS that is enclosed by the cortex. fly_anatomy.ontology UBERON:0002606 multi-cell-component structure synaptic neuropil subdomain synaptic neuropil domain cell body rind region