part of develops from first optic chiasma adult tract neuropil ensheathing glial cell adult primary neuropil glial cell larval outer optic chiasma giant glial cell adult optic chiasma glial cell adult outer optic chiasma giant glial cell 2011-05-23T02:00:22Z adult outer optic chiasm large glial cell Kremer et al. (2017) expression and morphological analysis suggests that these are tract neuropil ensheathing glia - https://orcid.org/0000-0002-1373-1705. adult XGO adult outer chiasmal glial cell fly_anatomy.ontology adult outer optic chiasm giant glial cell VFB:FBbt_00100526 Large glial cell of the outer optic chiasm of the adult optic lobe. It extends many cytoplasmic processes that enwrap fiber bundles at and near the sites of axonal intersection (Tix et al., 1997), but does not invade the neighboring synaptic neuropil (Kremer et al., 2017). There are around 50 of these per optic lobe and each envelops 8-12 fiber bundles, with multiple glial cells sharing each large strand of fibers (Kremer et al., 2017). FBbt:00100526