Thoracic Nerve

The are the 12 pairs of spinal nerves emerging from the thoracic region of the spinal cord (T1 to T12). They control chest and abdominal wall muscles, provide sensation to the torso and upper abdomen, and include the unique T1 nerve (which helps form the brachial plexus for the arm) and T12 (subcostal nerve).

: It descends behind the brachial plexus , passes over the first rib, and continues down the lateral chest wall along the mid-axillary line for approximately 22–24 cm. thoracic nerve