Are rhey referencing vertebrae that control each finger? I don't think there is an eighth cervical vertebrae. Someone correct me if I'm wrong.
Median Nerve extends along the arm and forearm to the hand. It arises from the lateral and medial cord of the brachial plexus.Its fibers are derived from C5,C6,C7,C8 and T1 nerve roots of brachial plexus