The Mind of 
	a Worm

Members: PVDL, PVDR.

PVD is a set of two interneurons with cell bodies situated laterally in the posterior body. Anteriorly and posteriorly directed processes leave the cell bodies and run alongside the excretory canal in close association with the processes of ALA and CAN. These three processes have not been completely reconstructed in the posterior body, although they have been sampled in several places. Two of the processes end at about the level of the anus; a third enters the lumbar ganglia and synapses onto PVC (ALA-d). A single synapse on the lateral hypodermis has also been seen on one of the processes (CAN-c). PVD neurons send out a third, ventrally directed process, which enters the ventral cord as a commissure. This process runs anteriorly in the ventral part of the cord and has several dyadic synapses to AVA and PVC (a). There are also a few synapses to DVA (b). Magnifications: (a, b) x 25500.
PVD ventral cord synapses
partners gap junctions synapses from synapses to and corecipients
AVA - - 22 PVC, 4AVA, PVD
PVC - 1m 2, 22 AVA, 2 PVC, DVA, HDC
DVA - - 2, PVC
PVD - 1m AVA

Web adaptation, Thomas Boulin, for Wormatlas, 2001, 2002