Shoulder Blade Anatomy

Anatomy of the Shoulder Blade (Scapula)
The scapula, also known as the shoulder blade is located towards the back of the shoulder blade and helps provide the housing for the head of the humerus. It is connected to the humerus and the clavicle, articulating with both.  Where the scapula and clavicle meet is known as the AC joint, whereas the meeting place of the scapula and humerus forms what is known as the ball-and-socket joint of the shoulder.  The scapula is a flat plate of bone that is triangular in shape, with a prominent spine.  The acromion extends out slightly from the spine of the scapula, which then forms the high point on the shoulder blade.
 
Related Injuries
- Fractured Scapula

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Referenced Material
Anatomica’s Body Atlas. (2002). San Diego, CA: Thunder Bay Press (pg. 106)