Trapezius Action,”-upper trapezius: into clavicle, acromion scapula elevation, upward rotation-middle trapezius: superior spine of scapula, scapula retraction-lower trapezius: medial superior spine of scapula, depression

Trapezius Action,”-upper trapezius: into clavicle, acromion scapula elevation, upward rotation-middle trapezius: superior spine of scapula, scapula retraction-lower trapezius: medial superior spine of scapula, depression

upward rotation”