Pectoral Muscle
Muscular System
The pectoral muscles are a group of muscles on the anterior chest wall that move the arm and scapula and assist breathing.
Members of the Group
- Pectoralis major: large and fan-shaped, the most superficial.
- Pectoralis minor: triangular, lying beneath the pectoralis major.
- Subclavius: small, beneath the clavicle.
- Serratus anterior: on the lateral chest wall; sometimes included in this group.
Functions
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