Figure 2.

Neurogenesis in SGZ. The SGZ is a thin band of tissue that lies between the granule cell layer (GCL) and the hilus cells in the DG. Type 1 cells are triangular-shaped NSCs and usually extend a strong apical process into the molecular layer (ML). Type 1 cells (blue) generate type 2 cells (green). Type 2 cells are immature neuroblasts that can be further differentiating into type 3 cells (yellow). Type 3 cells progressively acquire characteristics of granule neurons. During the stage of immature (pink) to mature (red), large parts of the dendritic tree and axon elongate toward CA3.