develops from larval posterior intermediate commissure adult posterior intermediate commissure 2021-01-08T14:56:57Z fly_anatomy.ontology VFB:FBbt_00047558 Any adult ventral nerve cord commissure that develops from a larval posterior intermediate commissure. There are three of these in the prothoracic neuromere and four in the mesothoracic and metathoracic neuromeres (Court et al., 2020). They collectively contain fibers of hemilineages 5B, 6B, 12B, 19B and 23B (Court et al., 2020). FBbt:00047558 adult ventral nerve cord commissure