There are a number of important muscles in the shoulder region that move the scapula or the humerus. These muscles have a number of similarly important nerves innervating them, mostly from the very nearby brachial plexus. Let's look at 6 of the most important nerves and 2 pairs of smaller nerves: Accessory nerve Axillary nerve Suprascapular nerve Dorsal scapular nerve Thoracodorsal nerve Long thoracic nerve Pectoral nerves Subscapular nerves