SPRINGER MEDIZIN / SCIENCE PHOTO LIBRARY SPRINGER MEDIZIN / SCIENCE PHOTO LIBRARY
Shoulder muscle. Computer artwork of an oblique posterior view from above of one of the muscles (red) of the shoulders and its attachment to the bones of the back and upper arms. This is the supraspinatus muscle, which runs from the upper part of the infraspinous fossa of the scapula (shoulder blade) to the upper surface of the greater tubercle next to the head of the humerus (upper arm bone). The function of this rotator cuff muscle is to enable abduction of the arm and to stabilise the shoulder joint. The right-hand side of this view includes joint ligaments (white). Also shown are the ribcage, spine and clavicles.
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