THORACOLUMBAR SYSTEM

that part of the autonomic nervous system (also called the sympathetic system) consisting of the nerves that arise from the thorax (abdominal cavity) and lumbar (lower spinal column) regions of the spinal cord. It does such things as stimulate the heartbeat, dialate the pupil of the eye and slow down the activity o f glands, digestive and reproductive organs. —HEV Approved Glossary

that part of the autonomic nervous system (also called the sympathetic system) consisting of the nerves that arise from the thorax (abdominal cavity) and lumbar (lower spinal column) regions of the spinal cord. It does such things as stimulate the heartbeat, dialate the pupil of the eye and slow down the activity of glands, digestive and reproductive organs.