Fig. 4: Examples of spiny dendrites with different linear densities of synapses.
From: Tracing nerve fibers with volume electron microscopy to quantitatively analyze brain connectivity
a Tracings of spiny dendrites (blue) from the stratum radiatum of the hippocampus (SR), and layers 1 and 3 of the somatosensory cortex (L1 and L3). Each tracing is identified by the region (SR, L1 or L3) followed by the identification number of the dendrite, and the linear density of synapses expressed in synapses per micron of dendritic shaft. Excitatory (green) and inhibitory (red) synapses that are established on each dendrite have also been represented. b Histograms of the distributions of the linear densities of synapses established on spiny dendrites of the three regions.
