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Muscles of Pectoral Region (Left)
Muscular System

Muscles of Pectoral Region (Left)

Musculii regio pectoralis

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Description

The muscles of the pectoral region are a group of muscles of the upper limb that attach to the sternum and anterior parts of ribs on one end, and to the scapula, clavicle, and humerus on the other. They are involved in movements of the shoulder and arm and help stabilize these during fine motor movements.

The muscles of the pectoral region consist of the:

- pectoralis major;

- pectoralis minor;

- subclavius;

- serratus anterior.

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Pectoral Muscle

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The pectoral muscles originate from a single muscle mass that divides into a superficial layer and a deep layer.

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