• lateral ganglion
    • The left and right lateral ganglia lie beside the nerve ring in the head. They each contain about (30) neuron cell bodies and send their neuronal processes into the ring at its posterior margin either laterally or ventrally via the amphid commissures and ventral ganglion, but form no local neuropil separate from the nerve ring. The lateral ganglia are in close contact with the lateral hypodermal cords.
  • ventral ganglion
    • ganglion lies beside the nerve ring in the head, just anterior of the retrovesicular ganglion. It contains about 20 interneuron and motorneuron cell bodies that all send their neuronal processes into the ring. The cell bodies are divided into two groups by the intrusion of the excretory duct and canal. The cells are bounded by a basal lamina which physically separates them from the lateral ganglion even though they are adjacent to one another.
  • posterior lateral ganglion
    • ganglion on the lateral side, in postior portion of the body, associated with posterior deirid.
  • lumbar ganglion
    • The left and right lumbar ganglia lie behind the pre-anal ganglion in the tail, in lateral positions. Each contains 12 neuron cell bodies that send most of their neuronal processes into the ventral nerve cord via lumbar commissures and the pre-anal ganglion. There is no local neuropil in these ganglia in the hermaphrodite, instead they form most synapses in the pre-anal ganglion. Most lumbar neurons have sensory functions. In the adult male tail, these two ganglia gain many additional neurons and have some local neuropil. The lumbar neurons lie in close association with the lateral hypodermis, and most are posterior to the anus.
  • obsolete tail ganglia
  • PVQ
    • Neuron class of two interneurons, cell bodies in lumber ganglia.
  • AVH
    • Neuron class of two interneurons with cell bodies in the lateral ganglia.
  • RIB
    • Neuron class of two interneurons with cell bodies in the lateral ganglia.
  • AVD
    • Neuron class of two interneurons with cell bodies situated in the lateral ganglia.
  • AIB
    • Neuron class of two interneurons with cell bodies situated in the lateral ganglia.
  • AUA
    • Neuron class of two neurons with cell bodies situated in the lateral ganglia.
  • PVC
    • Neuron class of two interneurons with cell bodies situated in the lumbar ganglia.
  • LUA
    • Neuron class of two interneurons with cell bodies situated in the lumbar ganglia.
  • AIN
    • Neuron class of two interneurons with cell bodies situated in the lateral ganglia.
  • AVB
    • Neuron class of two interneurons with cell bodies situated in the lateral ganglia.
  • RIC
    • Neuron class of two interneurons with cell bodies situated in the posterior regions of the lateral ganglia.
  • cloacal ganglion
    • A pair of neuronal ganglia in the adult male tail, lying on either side of the proctodeum, but not found in the hermaphrodite.
  • AVA
    • Neuron class of two interneurons with cell bodies situated in the lateral ganglia adjacent to the neuropile of the nerve ring.
  • RIA
    • Neuron class of two prominent interneurons with cell bodies situated in the lateral ganglia, adjacent to the neuropile of the nerve ring.
  • AIZ
    • Neuron class of two interneurons with cell bodies situated in the lateral ganglia, one of the main classes of integrating neuron for the receptors of the amphid sensilla.
  • PHC
    • Neuron class of two neurons with cell bodies situated in the lumbar ganglia. Posteriorly directed processes run from the cell bodies into the tails pike running alongside the processes of PLM and PLN. The disposition of these processes suggests that they may be sensory dendrites.
  • accessory cell
    • cells that support sensory neurons, similar to glial cells in vertebrates. A category which collectively refers to socket cells, sheath cells, and structural cells, or their processes. All of these cells extend long processes which serve a supporting role, rather like glia, to form a protective environment around sensory neuron endings. In addition, some of these cells extend broad thin processes from their somata which wrap around neuronal ganglia, again in a glia-like fashion