Upper panel, EM reconstruction of different presynaptic inputs, as indicated, along the proximodistal axis of T4 dendrites. Dendrites span an average of three columns. Lower panel, annotated synapses for different neurotransmitter inputs are shown. Colored arrows in the lower panel show domains targeted by color-matched presynaptic inputs from the upper panel. TmY15 is an exception forming synapses across the length of T4 dendrites.
