The shoulder muscles play a large role in how we perform tasks and activities in daily life. ... Pectoralis major is a large, fan-shaped muscle stretching from your collarbone to mid-chest.

Collarbones have many ligaments and muscles attached to them, so breaking one can require a rigorous physical therapy routine. Tactical Fitness: The Best Way to Do Push-ups After a Collarbone ...

Clavicle - the only bone ... Teres major - one of the 7 scapulohumeral muscles around the glenohumeral joint that facilitates movement of the shoulder; Latissimus dorsi ...