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a. Rotating 3D Image
of skeleton and muscle (in new tab or window
Origin: (proximal attachment)
a. Middle part of the lateral (axillary) border of the scapula.
Insertion: (distal attachment)
a. Inferior aspect of greater tubercle of humerus.
c. Helps stablize the shoulder by drawing the humerus toward the glenoid fossa of the scapula.
Nerves & Nerve Roots:
a. Axillary nerve.
a. C5 and C6.