obsolete bilateral intrinsic neuron true FBbt:00003989 Obsoleted, as annotating something as an intrinsic neuron is meaningless without a defined region. bilateral local interneuron fly_anatomy.ontology A midline crossing bilateral intrinsic neuron that projects only within some pair of bilaterally symmetric synaptic neuropil domains and their connecting tracts. For example within the left and right antennal lobes and antennal commissure.