Rotator Cuff Anatomy

Muscles are the most important for the movement of the body. There is the group of muscle are present in the body known as rotator cuff muscle. The main function of the rotator cuff muscle is to stabilize the shoulder. As the name indicates the rotator cuff muscle help to rotate the body in the shoulder region. Rotator cuff anatomy is, consist of four muscles of the rotator cuff and the teres major along with the detailed and the coracobrachialis muscle all these seven act to make the scapulohumeral muscle of the body. This hand movement is pretty much controlled by the rotator cuff muscles as they consist on the major portion of the scapulohumeral. The name of the muscle which are include in the rotator cuff muscle are the terse minor, tendon of the subscapularis, the tendon of the supraspinatus and the infraspinatus. Through the four muscles of the rotator cuff the humerus or the upper Aram is connected to the shoulder blade. Through this rotator cuff anatomy we will able to understand the how the arm rotates around the shoulder. The muscle and the tendons of muscle of the rotator cuff are inserted into the scapula and the humerus. In more detail rotator cuff anatomy the muscles are inserted into the shoulder scapula and their tendon are inserted into the humerus. Thus all these muscles of the rotator cuff and other tendons form a cuff like structure around the humerus that’s why it is called rotator cuff muscles as they help in the rotation. Blood supply of rotator cuff muscle is supplied by the circumflex arteries and nerve supply is different for each type of muscle. Supraspinatus muscle helps in the abduction of the arm and is supplied by the supracaspular nerve C5. Infraspinatus muscle is supplied by the nerve supply of supracaspular nerve C5 and C6 and their function is to rotate the arm externally. Teres minor muscle is supplied by the auxiliary nerve C5. Sub scapularis muscle nerve supply is supplied by the upper and lower sub scapular nerve and its function is internally rotated the muscle.

Rotator cuff muscle plays an important role in the shoulder movement and also play a role in the glenohumeral joint stability. Analogously they define as the golf ball which is sitting on the golf tree. During the abduction the calf muscle performs concavity compression by compress the glenohumeral joint by doing this rotator cuff muscle allow the deltoid muscle of arm to raise the arm further high. So we can say that the humeral head ride up from the glenoid fossa without the rotator cuff and the efficacy of the deltoid muscle to raise the arm high will get reduced. The rotator cuff play role in the stability of the joint and the compression applied due to the force of different direction. So if we say that movement of arms would not be possible without the rotator cuff muscles.

Different injuries can be occurring to the rotator cuff muscles.  These injuries include rotator cuff tear  in which tendon which are present at the end of the muscle become torn due to which pain occur in this region and movement of the arm become restricted. Only rest is advisable and it heals slowly in rotator cuff tear. Rotator cuff impingement which is detected by the Hawkin Kennedy test because it tests sensitivity is about 80 % in detection of the impingement. The treatment mood is different such as first of all rest is advice on the affected area. By icing the affected area to reduce the inflammation.  By Applying compression on the affected area limit the swell of the area. Elevate the area from the normal body level in order to reduce the inflammation or swelling. If the situation persist then the radiography and magnetic resonance imaging is advised. The patient is advised to change its sleeping posture so that relieves the pain. Rotator cuff injuries mostly occur to the athlete such as swimmer, disc thrower, volleyball player, baseball pitcher, cricketing bowler, and other than the athletes include the labors body builder because they use the rotator cuff mostly. So different exercise is advised to strengthen the deltoid muscle.