part of has fasciculating neuron projection develops from adult posterior anterior ventral commissure adult prothoracic posterior anterior ventral commissure 2021-01-08T12:07:02Z fly_anatomy.ontology ProNm pAV FBbt:00047144 VFB:FBbt_00047144 Commissure found at the anterior of the adult prothoracic neuromere that crosses the midline posterior to the hemilineage 2A primary neurites (Shepherd et al., 2016; Court et al., 2020). It is derived from the larval prothoracic anterior ventral commissure, which becomes segregated into two (anterior and posterior) adult commissures (Court et al., 2020). It is formed of lineages 13B and 14A (Court et al., 2020). larval prothoracic anterior ventral commissure lineage 14 secondary neuron hemilineage 13B secondary neuron adult prothoracic neuromere