Figure 8.

Immature glia in the adult OB. (A–C) Astroglia exhibiting an intermediate morphology between radial glia and a protoplasmic astrocyte. Note the presence of sibling cells with the same fluorescent signature accompanying these potential immature cells. (D) A drawing by Cajal showing an isogenic group composed of 4 astrocytes (quadriga) in the gray matter of the human brain. (E,F) Isogenic groups of 2 (E; twin astrocytes) or 5 cells (F). In these groups the cells orientate their processes in the opposite direction to the cleavage plane. Scale bars = 25 μm in A–C, E,F (shown in F).