What is ganglia?

Some articles on ganglia:

Cannabinoid Receptor Type 1 - Expression - Brain - Basal Ganglia
... CB1 receptors are expressed throughout the basal ganglia and have well established effects on movement in rodents ... and inhibitory GABA interneurons in both the basal ganglia's direct and indirect motor loops, synthetic cannabinoids are known to influence this system in a dose-dependent triphasic pattern ...
Cranial Nerve Ganglia
... In neuroanatomy, the cranial nerve ganglia are parasympathetic ganglia of the cranial nerves ...
Mollusca - A "generalized Mollusc" - Nervous System
... below the level of the gut, and include ganglia as local control centers in important parts of the body ... Most pairs of corresponding ganglia on both sides of the body are linked by commissures (relatively large bundles of nerves) ... The only ganglia above the gut are the cerebral ganglia, which sit above the esophagus (gullet) and handle "messages" from and to the eyes ...
Sacral Ganglia
... The sacral ganglia are paravertebral ganglia of the sympathetic trunk.39 As the sympathetic trunk heads inferiorly down the sacrum, it turns medially ... There are generally four or five sacral ganglia ... In addition to gray rami communicantes, the ganglia send off sacral splanchnic nerves to join the inferior hypogastric plexus ...
Sympathetic Ganglion
... Sympathetic ganglia are the ganglia of the sympathetic nervous system ... Sympathetic ganglia are the tissue from which neuroblastoma tumours arise ...