midline glial cell larval ventral midline glial cell V-MG VFB:FBbt_00001317 Larval midline glial cell located ventral to the commissures (Wheeler et al., 2006). It wraps one or both of the anterior and posterior commissures with its processes (Wheeler et al., 2006). There is usually one of these cells per neuromere (Wheeler et al., 2006). FBbt:00001317 midline ventral glial cell fly_anatomy.ontology larval VNC ensheathing glial cell