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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. |
lumbar ganglion
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lumbar lateral ganglia |
WBbt:0005830
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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. |
lateral ganglion
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lateral ganglia |
WBbt:0005105
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interneuron of the pharyngeal nervous system. |
pharyngeal interneuron
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WBbt:0003668
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pharyngeal motor neuron
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WBbt:0003677
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ganglion anterior to the nerve ring |
anterior ganglion
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WBbt:0005375
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