Pectoralis Major Rupture
Lennard Funk
The Pectoralis major is a very powerful muscle that forms the chest prominence and. It moves the shoulder forwards and across your chest. It is best known as the muscle that you develope with the bench press exercise.
The pec major attaches to the humerus bone (upper bone of arm) and is divided into two parts. The upper part is known as the 'clavicular head' and the lower part the 'sternal head', based on their origins from the clavicle and sternal bones repsectively.