FIG. 5.

View of a reconstruction of a terminal (orange) formed onto an SMN (blue, neuron R1). The reconstruction was generated with 21 serial sections, one of which is shown in Fig. 4A. The terminal forms seven synapses on the SMN (light color, one shown by arrowheads). The origin of the swelling is the myelinated stalk visible at the lower right (my, dark orange color). The gray structure at left is an unlabeled dendrite in neuropil that receives a synapse from the reconstructed terminal. Scale bar = 1 μm.