- Rotator cuff
- A group of four tendons that stabilize the shoulder joint. Each of the four tendons hooks up to a muscle that moves the shoulder in a specific direction. The four muscles whose tendons form the rotator cuff are: The subscapularis muscle, which moves the arm by turning it inward (internal rotation); The supraspinatus muscle, which is responsible for elevating the arm and moving it away from the body; The infraspinatus muscle, which assists the lifting of the arm during turning the arm outward (external rotation); The teres minor muscle, which (like the infraspinatus) helps in the outward turning (external rotation) of the arm.
* * *rotator cuff -.kəf n a supporting and strengthening structure of the shoulder joint that is made up of part of its capsule blended with tendons of the subscapularis, infraspinatus, supraspinatus, and teres minor muscles as they pass to the capsule or across it to insert on the humerus called also musculotendinous cuff
* * *a musculotendinous structure about the capsule of the shoulder joint, formed by the inserting fibers of the supraspinatus, infraspinatus, teres minor, and subscapularis muscles, blending with the capsule, and providing mobility and strength to the shoulder joint.
Medical dictionary. 2011.
Look at other dictionaries:
rotator cuff — n. a group of muscles, under the deltoid muscle, covering the shoulder joint and connecting the humerus to the scapula: it controls shoulder rotation … English World dictionary
Rotator cuff — Infobox Anatomy Name = Rotator cuff Latin = GraySubject = 123 GrayPage = Caption = Muscles on the dorsum of the scapula, and the Triceps brachii. Caption2 = The scapular and circumflex arteries. System = Precursor = MeshName = MeshNumber =… … Wikipedia
rotator cuff — noun A set of four smaller muscles in the shoulder responsible for rotating the humerus (upper arm bone). In my quest for world records, I ruined both my rotator cuffs. The cuff, a group of four relatively small (but important) shoulder muscles… … Wiktionary
rotator cuff — ro′tator cuff n. anat. a bandlike group of muscles encircling and supporting the shoulder joint and controlling shoulder rotation … From formal English to slang
rotator cuff — noun Date: 1961 a supporting and strengthening structure of the shoulder joint that is made up of the capsule of the shoulder joint blended with tendons and muscles as they pass to the capsule or across it to insert on the head of the humerus … New Collegiate Dictionary
rotator cuff — a bandlike structure encircling and supporting the shoulder joint, formed by four muscles attached to and merging with the joint capsule. * * * … Universalium
rotator cuff — noun Anatomy, chiefly N. Amer. a tough sheath of tendons and ligaments that supports the arm at the shoulder joint … English new terms dictionary
rotator cuff — noun a supporting structure of the shoulder consisting of the muscles and tendons that attach the arm to the shoulder joint and enable the arm to move • Hypernyms: ↑structure, ↑anatomical structure, ↑complex body part, ↑bodily structure, ↑body… … Useful english dictionary
Rotator cuff tear — Infobox Disease Name = PAGENAME Caption = Muscles on the dorsum of the scapula, and the Triceps brachii. DiseasesDB = 32230 ICD10 = ICD10|M|75|1|m|70, ICD10|S|46|0|s|40 ICD9 = ICD9|726.1 ICD9|727.61, ICD9|840.4 ICDO = OMIM = MedlinePlus =… … Wikipedia
rotator cuff tendinitis — an overuse injury consisting of inflammation of tendons of one or more of the muscles forming the rotator cuff, usually owing to repetitive elevation and abduction of the upper limb; it can lead to tendon degeneration and bony changes of the… … Medical dictionary