T Spine Nerves New! 【QUICK | 2026】

The thoracic spine (T-spine) consists of 12 vertebrae (T1–T12) located in the mid-back. While less mobile than the neck or lower back, its network of is critical for sensory and motor functions across your torso, chest, and internal organs. Anatomy of T-Spine Nerves

Each thoracic nerve is a "mixed nerve," meaning it carries both (feeling) and motor (movement) fibers. These nerves emerge from the spinal cord through openings called intervertebral foramina, located below their corresponding vertebrae. Thoracic Spine: What It Is, Function & Anatomy t spine nerves

| Nerve Level | Primary Innervation (Area of Body) | Key Clinical Notes | | :--- | :--- | :--- | | | Medial arm, axilla (armpit) | Part of Brachial Plexus. Pain here often mimics C8 radiculopathy. | | T2 | Medial upper arm, chest wall | Often involved in "Intercostobrachial neuralgia" (pain shooting from chest to arm). | | T3 – T6 | Upper chest wall and upper back | Supplies ribs and intercostal muscles. Controls breathing mechanics. | | T7 – T11 | Lower chest and upper abdomen | Supplies the abdominal muscles (obliques/rectus abdominis). Important for trunk stability. | | T12 | Lower abdomen and groin | Known as the Subcostal Nerve . Pain can refer to the groin or hip, mimicking hip pathology. | The thoracic spine (T-spine) consists of 12 vertebrae