part of CNS surface glial cell CNS surface associated glial cell FBbt:00001252 FBbt:00001257 CNS glial cell of perineurium VFB:FBbt_00001252 A glial cell that is part of (either layer of) the perineurium at the surface of the central nervous system. fly_anatomy.ontology CNS glial cell central nervous system glial cell surface glial cell perineurium