The thoracodorsal nerve, also known as the middle subscapular nerve, is a branch of the brachial plexus that innervates the latissimus dorsi muscle of the back. If you are looking for synonyms for thoracodorsal nerve, you might try the following: middle subscapular nerve, thoracodorsal nerve of the brachial plexus, or subscapularis nerve. These terms all describe the same nerve, but may be used more commonly in certain medical contexts or regions. Regardless of the term used, the thoracodorsal nerve is an important nerve for upper body movement and function.