VZ --> Daughter cells with the mitotic axis parallel to the ventricular surface differentiate and migrate (via radial glia).
Neuroepithelial cells migrate to the superficial layer of the cortical plate (CP); thus, younger cells are in the most superficial layer andolder cells in deeper layers.
Throughout this process, excess neuroepithelial cells degenerate via apoptosis.
PP --> appears by 4 weeks of gestation and is eventually divided by the CP zone into a marginal zone (MZ) and a remnant of the PP zone,sometimes called the subplate zone (SPZ). See the pic
This layer is transient
MZ --> neocortical layer I (molecular)
The cortical plate (CP) --> forms neocortical layers II through VI.
intermediate zone (IZ) --> becomes white matter
The subventricular zone (SZ)contains small interneurons and persists for several months postnatally.