larval segmental nerve sensory neuron obsolete vesB neuron true FBbt:00002042 Sensory PNS neuron of embryonic/larval abdominal segments 1-7, the pro-, meta- or mesothoracic segments (Dambly-Chaudiere and Ghysen, 1986). In the thoracic segments it innervates the anterior medial hair of the Keilin organ, together with the vesC neuron. In the abdominal segments it is located dorsal to vesA and ventral to vesC. Obsoleted as thoracic and abdominal vesB neurons innervate different sense organs, so should not be considered to belong to the same segmentally-repeated type. Suggesting 'larval segmental nerve sensory neuron' as replacement as this is the closest shared parent of abdominal and thoracic (Keilin organ) vesB neurons. fly_anatomy.ontology