
Chest
Pectoralis major
Adducts and medially rotates the arm. the clavicular fibers assist shoulder flexion
- Origin
- Medial clavicle, sternum, and costal cartilages of the upper ribs
- Insertion
- Lateral lip of the intertubercular sulcus of the humerus
- Primary actions
- Adducts and medially rotates the arm. the clavicular fibers assist shoulder flexion
Educational anatomy reference only. This page does not diagnose pain, injury, or movement limitations.
From anatomy to action
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