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Rotator cuff (with 11. Supraspinatus, 12. Subscapularis, 13. Infraspinatus, 14. Teres minor), 15. Biceps muscle. The rotator cuff 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 four muscles are:
Rotator cuff tendinopathy is a process of senescence. The pathophysiology is mucoid degeneration. [4] Most people develop rotator cuff tendinopathy within their lifetime. [5] As part of rotator cuff tendinopathy, the tendon can thin and develop a defect. This defect is often referred to as a rotator cuff tear.
The "rotator cuff" is a group of four tendons that blend together as they attach to the upper end of the arm bone (humerus). These tendons transmit the force of muscles originating on the shoulder blade (scapula) to the arm providing rotational motion and centering or stability of the joint.
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 movement. [ 3 ]
The shoulder joint is a muscle-dependent joint as it lacks strong ligaments. The primary stabilizers of the shoulder include the biceps brachii on the anterior side of the arm, and tendons of the rotator cuff; which are fused to all sides of the capsule except the inferior margin. [5]
The teres minor (Latin teres meaning 'rounded') is a narrow, elongated muscle of the rotator cuff.The muscle originates from the lateral border and adjacent posterior surface of the corresponding right or left scapula and inserts at both the greater tubercle of the humerus and the posterior surface of the joint capsule.
Upper limb, Shoulder, rotator cuff, Right/left infraspinous fossa of scapula: middle facet of greater tubercle of humerus: suprascapular artery, circumflex scapular artery: suprascapular nerve: laterally rotates, adducts, and stabilises humerus: subscapularis, pectoralis major, latissimus dorsi: 2 1 teres minor: Upper limb, Shoulder, rotator ...
The greater tubercle of the humerus is the outward part the upper end of that bone, adjacent to the large rounded prominence of the humerus head. It provides attachment points for the supraspinatus, infraspinatus, and teres minor muscles, three of the four muscles of the rotator cuff, a muscle group that stabilizes the shoulder joint.