Anterior and posterior views of the<unk><unk>  with labeled bony landmarks and muscle insertion sites. The shoulder joint consists of the glenoid cavity of the scapula and the head of the<unk> . It as an extremely mobile joint that is stabilized by surrounding soft tissues such as the joint capsule, muscles, and ligaments. The greater and lesser tuberosities are bony landmarks of the<unk><unk>  and serve as attachment sites for musculature. The anterior and posterior humeral circumflex arteries branch off of the axillary artery to provide the majority of the blood supply to the<unk><unk> . The axillary nerve courses inferior to the shoulder joint and innervates the deltoid and teres minor muscles. It also provides sensation at the skin overlying the shoulder. This nerve is the most commonly injured nerve in<unk> s due to its location close to the<unk><unk> . Muscles that attach to the<unk><unk>  and can cause a deforming force on fracture fragments include the pectoralis major, the deltoid, and the rotator cuff muscles.
Proximal humerus fracture
Scaphoid fracture
Humerus fracture
Scapular fracture
Cuboid fracture
Elbow fracture
Bosworth fracture
Jefferson fracture