part of develops from larval antenno-maxillary sensory complex larval antennal segment sense organ dorsal organ An external compound sense organ of the antenno-maxillary complex of the larval head consisting of two sensilla, a dome shaped cuticular process, and a region surrounding the base of the dome (Campos-Ortega and Hartenstein, 1997; Komarov and Sprecher, 2022). Each dome sensillum is innervated by seven circularly arranged triplets of olfactory receptor neuron dendrites (Komarov and Sprecher, 2022). Eleven sensory neurons of other modalities innervate six sensilla of each base region (Komarov and Sprecher, 2022; Richter et al., 2024). antennal organ FBbt:00002655 fly_anatomy.ontology VFB:FBbt_00002655 AntSO do DO larval antennal sense organ antennal element antennales Organ olfactory sensory organ gustatory sensory organ embryonic antennal sense organ external compound sense organ anterior ectoderm derivative