Fig. 3

Distribution of 5HT-ir neurons in the VNC of Scutigera coleoptrata. All neurons were detected in every ganglion of all preparations. a These individually identifiable neurons can be distinguished according to somata positions within the ganglia into anterior (AC), lateral (LC), postero-lateral (PlC), posterior (PC), and postero-medial cells (PmC). b The AC project their neurites contralaterally (indicated for the left neuron by arrows). c The LC project their neurites medially towards the midline, but do not cross the latter (arrows). d Neurites of the PlC could only be traced for a short distance, projecting antero-laterally (arrows). e The pair of PCs sent their processes contralaterally (arrows). f The PmCs project laterally (arrows). As these cells are situated near the midline it was not always clear whether they project ipsi- or contralaterally. g Reconstructions of ACs. h Reconstructions of PCs. Compare also Fig. 6. Scale bars: A = 100 μm; B–H = 50 μm