Figure 9.
Number of synapses per neuron. A, Average number of synapses formed with neurons, calculated from Figure 7. Each bar indicates the number of synapses that a neuron of a given cell type (indicated along the x-axis) receives in each cortical layer (indicated along the y-axis). B, Summing over the cortical layers in A results in the total number of synapses a neuron of a given cell type (x-axis) receives. C, Dividing this number by the summed length of the dendritic branches of the dendritic trees results in the overall synaptic density of synapses along the dendritic trees of cortical cell types.