- Anatomy:
    - dorsal scapular nerve to both rhomboids is typically derived from C5 neve close to intervertebral foramen and runs downward and backward
            thru or across surface of middle scalene, parallel to & below accessory nerve;
    - it then passes medial to or thru levator scapulae (to which it may give a branch) and descends on the deep surface of rhomboids, parallel to the
            medial border of the scapula