Thoracic

The thoracic nerves are the spinal nerves emerging from the thoracic vertebrae. Branches also exit the spine and go directly to the Sympathetic Chain Ganglia of the Autonomic Nervous System where they are involved in the functions of organs and glands in the head, neck, thorax and abdomen. The roots of the long thoracic nerve can be found in the brachial plexus, a bundle of nerves which divides into a number of branches to innervate muscles in the arm, armpit, and chest. Classically, the nerve splits from the fifth, sixth, and seventh cervical nerves in the brachial plexus, although sometimes the roots are only in the fifth and sixth cervical nerves.

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