overlaps synaptic neuropil domain upper tectulum 2021-01-05T15:00:33Z FBbt:00049994 Dorsalmost layer of the tectulum that sits dorsal to the dorsal median tract and haltere tract (Court et al., 2020). The upper tectulum can be further segregated on the basis of the synapse rich neuropil regions into three segment-specific neuropils; a prothoracic neck neuropil, a mesothoracic wing neuropil and a metathoracic haltere neuropil (Court et al., 2020). UTct VFB:FBbt_00049994 fly_anatomy.ontology tectulum subdivision adult prothoracic neuromere adult mesothoracic neuromere adult metathoracic neuromere