Hi guys, i am moving to a new address that's served by optimum online. For TV, i want to get the cheapest package (just basic channels + their HD counterparts).
The prime mover for flexion of the shoulder muscles used are the following: 1  Pectoralis Major Clavicle. 2  Anterior Deltoid. 3  Biceps Brachii Short Head. 4  Coracobrachialis.
Two muscles -- the trapezius and serratus anterior -- are responsible for upwardly rotating your shoulder blade. The trapezius originates from the back of your skull and the spine of your neck and ribcage. It inserts onto your outer collarbone and shoulder blade.