<P> Sympathetic ganglia are the ganglia of the sympathetic nervous system . They deliver information to the body about stress and impending danger , and are responsible for the familiar fight - or - flight response . They contain approximately 20,000 -- 30,000 nerve cell bodies and are located close to and on either side of the spinal cord in long chains . Sympathetic ganglia are the tissue from which neuroblastoma tumours arise . </P>
the sympathetic chain of ganglia is found at the
close to and on either side of the spinal cord