part of develops from adult anterior anterior ventral commissure adult prothoracic anterior anterior ventral commissure 2021-01-08T10:53:55Z fly_anatomy.ontology FBbt:00047133 Commissure found at the ventralmost margin of the prothoracic neuromere, outside of the cell body rind, at the anterior of the neuromere (Court et al., 2020). It is derived from the larval prothoracic anterior ventral commissure, which becomes segregated into two (anterior and posterior) adult commissures, and is formed by primary neurite bundles of hemilineage 1A (Court et al., 2020). ProTh aAV ProNm aAV VFB:FBbt_00047133 larval prothoracic anterior ventral commissure adult prothoracic neuromere