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PVW is a set of two interneurons with cell bodies situated in the lumbar ganglia. Anteriorly
directed processes enter the pre-anal ganglia via the lumbar commissures and then run
alongside each other near the centre of the process bundle of the ventral cord, adjacent and
ventral to the processes of PVN. The processes of PVW end somewhere in the posterior body
regions, although the exact point has not been located. PVW makes a few rather small synapses
in the cord, each having only a few synaptic vesicles. The main postsynaptic
partners are PVT (a, b) and possibly AVD (c); there are gap junctions to PVC (d).
Magnifications; (a-d) x 25500.
PVW ventral cord synapses
partners |
gap junctions |
synapses from |
synapses to and corecipients |
PVT |
- |
- |
1, PVW, AVJ |
PVC |
3 |
1m |
AVD |
PVW |
- |
1m |
PVT |
AVJ |
- |
- |
PVT |
AVD |
- |
- |
PVC |
AVA |
- |
- |
VA12 |
VA12 |
- |
- |
AVA |
PVN |
- |
3m |
- |
LUA |
- |
2m |
- |
AVL |
- |
1m |
- |
|
