Shoulder Girdle Muscles
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The shoulder girdle consists primarily of the scapula bone and the clavicle bone or collar bone which move together as a unit. The shoulder girdle muscle are those which attach to and move these two bones. Select the shoulder muscles below to view more details, actions, origins and insertions.
Trapezius - A large triangular muscle from the skull, to the shoulder and down the spine.
Serratus Anterior - Muscle which anchors the scapula to the ribcage to prevent winged scapula.
Rhomboids - Major and Minor, between the spine and scapula to retract the scapula.
Shoulder Girdle Movements
The movements available for the shoulder girdle or scapula in particular are:
- Protraction - moving the shoulder blade forwards, away from the spine.
- Retraction - pulling the shoulder blades back, towards the spine.
- Elevation - moving the scapula upwards as in shrugging the shoulders.
- Depression - moving the shoulder blade downwards.
- Upward rotation - rotating the lower medial border of the scapula or shoulder blade away from the spine for example when the arm is moved out to the side and above the shoulder.
- Downward rotation - rotating the lower scapula towards the spine as in moving the arm behind the back.