ganglion vs nerve center

ganglion

noun
  • An encapsulated collection of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber. 

  • A centre of intellectual or industrial force, activity, etc. 

  • Any of certain masses of gray matter in the central nervous system, as the basal ganglia. 

  • A benign cystic tumour on a tendon sheath or joint capsule. 

nerve center

noun
  • A point at which nerves come together for the processing of signals. 

  • A physical location in a business, organization, or agency where information procured from different sources is brought together to be considered and acted upon by decision-makers. 

How often have the words ganglion and nerve center occurred in a corpus of books? (source: Google Ngram Viewer )