neuron projection bundle primary neurite tract 2020-04-28T12:54:07Z fly_anatomy.ontology Bundle containing fibers connecting the soma to the rest of the neuron (Frechter et al., 2019). One primary neurite tract may contain fibers from many neurons as they enter the neuropil (Frechter et al., 2019). FBbt:00049287 VFB:FBbt_00049287