Sympathetic Ganglion

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** A cluster of nerve cell bodies located within one of two paravertebral columns comprised of bundled nerve fibers that extend from the base of the skull to the first coccygeal vertebrae, or in a subsidiary location within the sympathetic nervous system. Sympathetic ganglia play a major role in the fight or flight and other stress-mediated responses.

**Synonyms:** - SYMPATHETIC GANGLIA