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Pectoralis Major Muscle
By: Tim Taylor
Last Updated: Jun 18, 2015
The pectoralis major is a large, fan-shaped muscle that covers much of the front upper chest. It begins at the breastbone (sternum) and the cartilage of the second to the sixth ribs and is attached to the collarbone (clavicle) to converge on the upper arm bone (humerus) just below the shoulder. Its main use is in moving the arm across the body.
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Anatomy Explorer
- Abdominal Head of Pectoralis Major Muscle
- Clavicular Head of Pectoralis Major Muscle
- Diaphragm
- Infraspinatus Muscle
- Intercostal Muscles
- Latissimus Dorsi Muscle
- Levator Scapulae Muscle
- Muscles of the Arm and Hand
- Muscles of the Head and Neck
- Pectoralis Major Muscle
- Pectoralis Minor Muscle
- Serratus Anterior Muscle
- Sternocostal Head of Pectoralis Major Muscle
- Subscapularis Muscle
- Supraspinatus Muscle
- Teres Major Muscle
- Teres Minor Muscle
- Trapezius Muscle
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