The Shoulder The Bones Clavical Scapula Humerus The
The Shoulder
The Bones � Clavical � Scapula � Humerus
The Muscles � Superficial muscles arise from the thorax and shoulder complex and attach to the humeral shaft › Deltoid, greater pectorial, latissimuss dorsi, teres major � Deep muscles go from scapula and go to the humeral head › Rotator Cuff Muscles: Supraspinatus, Infraspinatus, Teres Minor, Subscapularis (SITS)
Joints � Glenohumeral Joint � Sternoclavicular Joint (SC) � Acromioclavicular Joint (AC) � Coraclavicular Joint › Provides additional strength to the AC; connects the coracoid process and the clavicle; permits movement of scapula
The Ligaments/Tendons The AC joint › AC ligament › CC ligament › Articular disk › Capsular � The SC Joint › SC ligament › Clavicular ligament › Capsular › Articular disk � The GH Joint: › Coracohumeral › Glenohumeral › Transverse Humeral › Capsular �
Bursa � There are several bursae located around the shoulder › The most important is the subacromial bursa and is easily subjected to traumatization by the deltoid muscle when it contracts.
Movements of Shoulder � � � � � Abduction Adduction Protraction Retraction Elevation Depression Flexion Extension Internal/External Rotation Circumduction
Common Injuries � Contusions � Strains � Sprains � Impingement � Subluxations � Dislocations � Fractures � Ruptures
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