Ventral chain: refers to the series of ganglia of the nervous system.
Of what use are the ganglia (gray matter) in the spinal cord?
In the ancestral insect we may suppose that there was a pair of ganglia in each segment.
Above it lies the heart, and beneath it the nervous cord or chain of ganglia.
There are, in the ventral chain, four ganglia in the thorax and four in the abdomen.
Who, then, shall say what the nerves and ganglia know and what they do not know?
Consciousness, and ganglia, and suchlike, are after all but theories.
In this cylinder I recognize eleven ganglia, one more than in the Cetonia.
These were the ganglia of that tremendous organism of which Astor was the brain.
These ganglia have the power to maintain movements in their respective organs.