AVJ is a pair of interneurons with cell bodies in the lateral ganglion. Processes from the cell bodies enter the ring sub-dorsally and then run round it to the contralateral side near the centre of the neuropile, in close association with the processes of AVB. The processes of AVJ then leave the ring ventrally and traverse the length of the ventral cord, running immediately adjacent and dorsal to the processes of AVB and eventually petering out in the pre-anal ganglion. There are few synapses from AVJ; and those that are present are rather small and have some dark-cored vesicles. The main synaptic output is directed to PVC (a), AVB (a) and RIS (b) in the nerve ring, and to AVE (d) and AVD in the ventral cord. The main synaptic input is from BDU (*a), AVH (*c), ADA (*c), ADL, PVR (*b), RIF (*b), HSN and PVC in the nerve ring and PVN (*b) and AVF in the nerve ring and ventral cord. AVJ has a prominent gap junction with RIS in the neuropile of the ventral ganglion (c) ; RIS sends a short branch down into the neuropile of the cord in this region. There are gap junctions to PVC (*h) in the nerve ring and to AVD, PVC and itself in the ventral cord. Magnifications: (a) x 25500, (b-d) x 17000.
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Web adaptation, Thomas Boulin, for Wormatlas, 2001, 2002