Most sympathetic ganglia lie in a chain alongside the:

1. The chain runs the length of the trunk. 2. It follows the bones of the spine. 3. The majority of sympathetic ganglia belong to a network of chain ganglia running alongside the vertebral column. 4. So the answer is the vertebral column. _Source: OpenStax 'Anatomy and Physiology 2e', Ch 15 'The Autonomic Nervous System'_