Feets of Clay

Pectoralis Major

Origin: medial half of clavicle, sternum to rib 7
Insertion: intertubercular groove of humerus
Action: shoulder flexion, adduction, and medially rotatation of humerus (as in overhead fist raise, or bench press motion)
Joint/s Moved: shoulder
Bone of Origin: clavicle and sternum
Bone of Insertion: humerus
Link: Get Body Smart
Click 9 & 8 on slide bar