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Around human anatomy, the shoulder joint is composed of ternion bones: a clavicle (collarbone), a scapula (shoulder blade), & a humerus (upper arm bone). 2 joints help shoulder movement. A acromioclavicular (AC) joint is located between a acromion (part of a shoulder blade that forms a greatest point of the shoulder) & the collarbone. A glenohumeral joint, to which the generic term "shoulder joint" unremarkably refers, occurs as ball-&-socket joint that allows a arm to rotate within a round fashion or even to hinge out & higher out of the immune system. (A "ball" is a top, fat part of the upper arm bone or even humerus; the "socket," or even glenoid, is a dish-dished a share of a outer edge of the shoulder bone into which the ball fits.) Arm movement is farther facilitated per ability of a shoulder bone to slide each laterally & vertically along the rib cage. A capsule occurs as easy tissue envelope that encircles a glenohumeral joint. These are lined by the thinly, smooth synovium.

A bones of the shoulder come held in situ by muscles, tendons, and ligaments. Sinew come hard cords of tissue that connect a shoulder muscles to bone & help a muscles around moving a shoulder. Ligaments seize scapula to both more, providing stability. For instance, a front of the joint capsule is anchored by tierce glenohumeral ligaments.

A rotator cuff is a structure composed of tendons that, sustaining associated muscles, holds a ball at a top of the humerus in the glenoid socket & will bring mobility & nature and severity to the shoulder joint.

Both gossamer sac-prefer structures known as bursae permit smooth gliding between bone, muscle, & sinew. It cushion & protect a rotator cuff from either a skeletal arch of the acromial process.

Rotator Cuff Tears
Information about injuries to the rotator cuff, and surgical repair of this condition.

Shoulder India
Information on shoulder disorders from an Orthopaedic Surgeon.

Shoulder Pain
Information on common problems and their treatment.