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The Shoulder Joints Consist Of The Glenohumeral Joint, Acromioclavicular Joint, Sternoclavicular Joint And The Scapulothoracic Joint, Which Is Technically Not A True Joint. The Bony Structures Consist Of The Humerus, Scapula, And Clavicle. Soft Tissue Includes Muscles, For Example The Rotator Cuff Muscles (Supraspinatus, Infraspinatus, Subscapularis, And Teres Minor), Several Ligaments Including The Coracoclavicular (Trapezoid And Conoid), Coracohumeral, And Coracoacromial Ligament And Others, Labrum, Bursas And Brachial Plexus Nerve. The Shoulder Joint Is The Most Active And Complex Joint Of The Body. The Capsule And Ligament Act As Stabilizers, While The Muscles And Tendons Play A Dynamic Role. Rhythmic Cooperation Of The Shoulder Joints Ensures The Smooth Movement In All Directions.