Levator scapulae: Levator scapulae connects the neck for the shoulder blades, raises the shoulder blade, and extends/rotates the neck for upper back security. Using your arm straight and perpendicular to the floor, gradually twist your arm all over in terms of you comfortably can. Additionally, it aids in external rotation https://howtobuildmuscleintheuppe08642.qodsblog.com/26669470/the-greatest-guide-to-exercises-for-upper-back