triangular in shape, placed on a posterolateral aspect of the thoracic cage.

Structure

The scapula is a thick, flat bone lying on the thoracic wall that provides an attachment for three groups of muscles: intrinsic, extrinsic, and stabilizing and rotating muscles.

The intrinsic muscles of the scapula include the muscles of the rotator cuff (SITS muscle)--the subscapularis, supraspinatus, infraspinatus

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