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Use the tabs below to view shoulder muscles and arm muscles of the upper body or scroll down the page for leg muscles and back muscles of the lower. Click on the links to view more detail including muscle origin, insertion, muscle actions and more.

Use the tabs below to view shoulder muscles and arm muscles of the upper body or scroll down the page for leg muscles and back muscles of the lower. Click on the links to view more detail including muscle origin, insertion, muscle actions and more.

scapula the bone of the shoulder the scapula floats in a sea of muscles, so it is difficult to fracture; it articulates with the clavicle at the coracoclavicular and acromioclavicular joints scapular notch a notch on the superior border of the scapula located medial to the attachment of the coracoid process it is bridged by the superior transverse scapular ligament; the suprascapular a.