The schematics illustrate the locations of CNS (gray), neuropil (purple)
and astrocytes (green) in nematode (A), fruit fly (B),
zebrafish (C), mouse (D), and human (E)
at the level of organism, CNS and circuit. Dot plots summarize that 16
well-defined cellular phenotypes/functions of astrocytes are either found in
astrocytes (green), found in other type(s) of glia (blue), not known or
currently being explored (light green), or not found in glia (white) in the
relevant organism indicated. Some human astrocytes project long, unbranched
processes that cross cortical laminae (asterisk).