Levator scapulae: Levator scapulae connects the neck to the shoulder blades, raises the shoulder blade, and extends/rotates the neck for upper back balance. Exactly where It's: The various muscles from the rotator cuff cover the shoulder blade and insert deep within the glenohumeral joint. The rhomboids include main and insignificant https://howtobuildmuscleintheuppe10864.ageeksblog.com/26256188/the-2-minute-rule-for-how-to-build-muscle-in-the-upper-back