EMComputertoolsFIG 1: FIB/SEM imaging.

Side view of the male tail neuron PDC with in the preanal ganglion; inset below shows details of the synaptic contacts at higher power, from the region boxed above. Red arrows pointing toward the neurite indicate presynaptic inputs; violet arrows pointing way from the neurite indicate postsynaptic outputs. Green bars indicate gapjunctions. The width of the arrow (or bar) is proportional to the number of serial sections in which the synapse could be viewed. The black axis along the bottom indicates the print numbers in the animal N2Y in which the cell could be found. PDC’s cellbody position is marked by a purple bar along the ventral neurite.

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