Cortical Layers
n Supragranular Layers: Layers I - III
- Layer III receives input from other cortical columns
- Cells of layers II and III project to other parts of the cortex

Granular Layer: Layer IV
- Receives inputs from the thalamus
- Sends signals to the rest of the column (primarily up to layers II and III)

Infragranular Layers: Layers V - VI
- Receive input from the supragranular cells of adjacent columns
- Send signals mainly to extracortical structures (thalamus, other subcortical structures)
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