There are 12 pairs of thoracic spinal nerves. Each nerve is named for the vertebra it (except for the T1 nerve, which sits below the C7 vertebra).
| Feature | Cervical | Thoracic | Lumbar | |--------|----------|----------|--------| | Number of pairs | 8 (C1–C8) | 12 (T1–T12) | 5 (L1–L5) | | Sympathetic function | None (except T1 contribution) | Yes (all) | None | | Motor targets | Neck, diaphragm, arms | Chest, abdominal wall | Legs, hips | | Plexus formation | Brachial, cervical | None (intercostals only) | Lumbosacral | t spine nerves
These bridge the gap between the neck and chest, feeding into the Brachial Plexus to help control your hands and arms. There are 12 pairs of thoracic spinal nerves