Rotator Cuff: Taking Care of Muscles

Only available on StudyMode
  • Topic: Rotator cuff, Shoulder, Supraspinatus muscle
  • Pages : 2 (672 words )
  • Download(s) : 73
  • Published : December 21, 2011
Open Document
Text Preview
I chose the rotator cuff because it is a very important set of muscles that lets us move our shoulders and do many day to day things. The rotator cuff is a group of four muscles and tendons that attach to the bones of the shoulder joint, which allows the shoulder to move and also keep it stable. The four muscles that make up the rotator cuff are the Supraspinatus, Infraspinatus, Teres Minor, and the Subscapularis. These hold the head of the humerus into the scalpula. Injuries to the rotator cuff are very common. The four muscles of the rotator cuff are the Supraspinatus, which originates above the spine of the scapula and inserts on the greater tuberosity of the humerus. This muscle abducts the shoulder joint and also helps stabilize the head of the humerus in the glenohumeral joint. The second muscle is the Infraspinatus, which originates below the spine of the scapula, at the infraspinatus fossa, and inserts on the posterior aspect of the greater tuberosity of the humerus. This muscle externally rotates the shoulder joint. The third muscle is the Teres Minor, which originates on the lateral scapula border and inserts on the inferior aspect of the greater tuberosity of the humerus. This muscle externally rotates the shoulder joint. The fourth muscle of this group is the Subscapularis, this muscle originates on the anterior surface of the scapula, which sits directly over the ribs and inserts on the lesser tuberosity of the humerus. This muscle helps the humerus to move freely in the joint during elevation of the arm. The rotator cuff muscles are commonly injured by tears and strains. The major muscle of this group that gets injured is the Supraspinatus. Symptoms of a tear may be tenderness and pain, maybe some shoulder weakness or loss of ROM (range of motion). Here are a few causes of rotator cuff tears. We have normal wear and tear, which increases in people over the age of 40. We also have FOOSH (falling on outstretched hand) could tear or...
tracking img