Shoulder Girdle

Shoulder Girdle

1. 5 muscles - Cause Scapular Movement

   • **All have ORIGIN ON AXIAL skeleton **All have INSERTION on the SCAPULA and/or CLAVICLE **Primary Function of girdle 1. Stabilize shoulder during static contractions2. Provide base of support for shoulder joint movement
   • 1. Pectoralis Minor
     • Actions: Abduction (protraction), downward rotation and depression
   • 2. Serratus Anterior
     • Actions: Abduction (protraction) and upward rotation
   • 3. Trapezius
     • Actions: Superior fibers elevation & upward rotation; Middle fibers: retraction (adduction); Inferior fibers: depression and upward rotation
   • 4. Rhomboids
     • Actions: Adduction (retraction), downward rotation, and elevation
   • 5. Levator Scapulae
     • Actions: Elevation & Downward rotation

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