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Rotator cuff (with 11. Supraspinatus, 12. Subscapularis, 13. Infraspinatus, 14. Teres minor), 15. Biceps muscle. The rotator cuff (SITS muscles) is a group of muscles and their tendons that act to stabilize the human shoulder and allow for its extensive range of motion. Of the seven scapulohumeral muscles, four make up the rotator cuff. The ...
Shoulder anatomy, front view Shoulder anatomy, back view. The rotator cuff is an anatomical term given to the group of four muscles and their tendons that act to stabilize the shoulder. [3] These muscles are the supraspinatus, infraspinatus, teres minor and subscapularis and that hold the head of the humerus in the glenoid cavity during ...
This is particularly so if there is an associated rotator cuff injury. In such circumstances, it is suggested that labral debridement and biceps tenotomy is preferred. [14] SLAP (Superior Labral Tear, Anterior to Posterior) Type 1; Fraying of Superior Labrum; Biceps Anchor Intact; Type 2; Superior Labrum detached; Detachment of the Biceps ...
The rotator cuff muscles of the shoulder produce a high tensile force, and help to pull the head of the humerus into the glenoid cavity. The glenoid cavity is shallow and contains the glenoid labrum which deepens it and aids stability. With 120 degrees of unassisted flexion, the shoulder joint is the most mobile joint in the body.
Summing up it is through an external arm rotation and a medially applied 5 MHz sector sonic head possible to display the ventral part of the joint socket and its labrum with notedly lower echogenicity. [7] The following sectional planes are defined for the sonographic examination of the different shoulder joint structures: [8]
It is believed that it takes at least four to six weeks for the labrum to re-attach itself to the scapula bone (shoulder blade), and probably another four to six weeks to get strong. The labrum is a ring of cartilage on the rim of a shallow socket in the scapula into which the head of the upper arm bone normally fits and rotates. [citation needed]
The rotator cuff also reinforces this joint more specifically with the supraspinatus tendon to hold the head of the humerus in the glenoid cavity. The cavity surface is covered with cartilage in the fresh state, and its margins, slightly raised, give attachment to a fibrocartilaginous structure, the glenoid labrum, which deepens the cavity ...
The biceps or biceps brachii (Latin: musculus biceps brachii, "two-headed muscle of the arm") is a massive muscle that lies on the front of the upper arm between the shoulder and the elbow . Both heads of the muscle arise on the scapula and join to form a single muscle belly which is attached to the upper forearm.