Any of a series of nerves of the sympathetic part of the autonomic nervous system, innervating viscera and blood vessels.
The series of nerves in the sympathetic system that are distributed to the blood vessels and viscera, passing forward and downward from the chain of sympathetic ganglia near the spinal cord to enter the abdomen and branch profusely.
Any of the nerves from the thoracic sympathetic ganglia that supply the visceral organs.