Segmental Ganglia
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The segmental ganglia (singular: s. ganglion) are
ganglia A ganglion (: ganglia) is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system, this includes dorsal root ganglia and trigeminal ganglia among a few others. In the autonomic nervous system, there a ...
of the annelid and arthropod central nervous system that lie in the segmented
ventral nerve cord The ventral nerve cord is a major structure of the invertebrate central nervous system. It is the functional equivalent of the vertebrate spinal cord. The ventral nerve cord coordinates neural signaling from the brain to the body and vice ve ...
. The ventral nerve cord itself is a chain of metamerism ganglia, some compressed.


References

Animal nervous system Arthropod anatomy Annelid anatomy {{Arthropod-anatomy-stub