develops from intersegmental nerve root glial cell lateral intersegmental nerve root glial cell intersegmental glial cell 2 VFB:FBbt_00001306 The lateral segmental nerve root glial cell and the lateral intersegmental nerve root glial cell lie in close proximity. In some animals one of these is absent. The lateral intersegmental nerve root glial cell corresponds to ISPG2 described by Klambt and Goodman (1991) (Ito et al., 1995). FBbt:00001306 L-ISNG ISG2 Intersegmental nerve root glia that is located near the exit point of the nerve root. It develops from neuroblast NB7-4 (Beckervordersandforth et al., 2008). fly_anatomy.ontology neuroblast NB7-4 ectodermal derivative