Muscle, supraspinatus

Muscle, supraspinatus
A muscle that is responsible for elevating the arm and moving it away from the body. The tendon of the supraspinatus muscle is one of four tendons that stabilize the shoulder joint and constitute the rotator cuff. Each of the four tendons of the rotator cuff hooks up to a muscle that the shoulder in a specific direction. The four muscles whose tendons form the rotator cuff are: {{}}The supraspinatus muscle; The subscapularis muscle, which moves the arm by turning it inward (internal rotation); The infraspinatus muscle, which assists the lifting of the arm during turning the arm outward (external rotation); The teres minor muscle, which also helps in the outward turning (external rotation) of the arm. Damage to the rotator cuff is one of the most common causes of shoulder pain. The term "supraspinatus" means "above the spine". The supraspinatus muscle originates above the "spine" of the scapula (the wingbone).

Medical dictionary. 2011.

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  • Supraspinatus muscle — ] InnervationThe supraspinatus muscle is supplied by the suprascapular nerve (C5 and C6), which arises from the superior trunk of the brachial plexus and passes laterally through the posterior triangle of the neck and through the scapular notch… …   Wikipedia

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  • Muscle, teres minor — A muscle that assists the lifting of the arm during outward turning (external rotation) of the arm. The tendon of the teres minor muscle is one of four tendons that stabilize the shoulder joint and constitute the rotator cuff. Each of these four… …   Medical dictionary

  • Muscle, infraspinatus — A muscle that assists the lifting of the arm while turning the arm outward (external rotation). The tendon of the infraspinatus muscle is one of four tendons that stabilize the shoulder joint and constitute the rotator cuff. Each of the four… …   Medical dictionary

  • Muscle, subscapularis — A muscle that moves the arm by turning it inward (internal rotation). The tendon of the subscapularis muscle is one of four tendons that stabilize the shoulder joint and constitute the rotator cuff. Each of these four tendons hooks up to a muscle …   Medical dictionary

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  • supraspinatus — See s. (muscle). * * * su·pra·spi·na·tus .spī nāt əs n a muscle of the back of the shoulder that arises from the supraspinous fossa of the scapula, that inserts into the top of the greater tubercle of the humerus, that is one of the muscles… …   Medical dictionary

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