- a mass of nerve tissue existing outside the central nervous system.
- any of certain masses of gray matter in the brain, as the basal ganglia.
- Pathology. a cyst or enlargement in connection with the sheath of a tendon, usually at the wrist.
- a center of intellectual or industrial force, activity, etc.
Origin of ganglion
Examples from the Web for ganglia
The mother lode he turned to was the ganglia of so-called feeder funds.The Madoff Victims Who Came Out Ahead
Edward Jay Epstein
July 5, 2009
Ventral chain: refers to the series of ganglia of the nervous system.Explanation of Terms Used in Entomology
John. B. Smith
Of what use are the ganglia (gray matter) in the spinal cord?A Handbook of Health
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.Elementary Zoology, Second Edition
Vernon L. Kellogg
- an encapsulated collection of nerve-cell bodies, usually located outside the brain and spinal cord
- any concentration of energy, activity, or strength
- a cystic tumour on a tendon sheath or joint capsule
Word Origin and History for ganglia
Latin plural of ganglion.
1680s, from Greek ganglion "tumor," used by Galen for "nerve bundle." Of unknown origin; according to Galen, the proper sense of the word was "anything gathered into a ball."
- A group of nerve cells forming a nerve center, especially one located outside the brain or spinal cord.neuroganglion
- A benign tumorlike cyst containing mucopolysaccharide-rich fluid enclosed within fibrous tissue and usually attached to a tendon sheath in the hand, wrist, or foot.myxoid cyst synovial cyst
- A compact group of neurons enclosed by connective tissue and having a specific function. In invertebrate animals, pairs of ganglia occur at intervals along the axis of the body, with the forwardmost pair functioning like a brain. In vertebrates, ganglia are usually located outside the brain or spinal cord, where they regulate the functioning of the body's organs and glands as part of the autonomic nervous system.