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Latissimus Dorsi

Latissimus dorsi (lat) is a large, flat triangular muscle which is also the widest muscle in the human body. It begins in the lower portion of the back and tapers as it ascends to a narrow tendon that attaches to the humerus anteriorly. Due to which the

Psoas Minor, Iliacus and Quadratus Lumborum

Psoas Minor The Psoas Minor muscle is present in the bodies of only 50% of the people. If present, it runs in the downward direction, in front of the psoas major. Resembling the plantaris muscle of the leg in create and shape, it is only restricted to

Supraspinatus and Infraspinatus

The Supraspinatus is a relatively small muscle of the upper back that make up the rotator cuff. The supraspinatus and infraspinatus muscles starts from 2 large fossae, 1 above and 1 below the spine, on the posterior surface of the scapula. They create tendons that insert on


Subscapularis is a bulky triangular muscle, which fills the subscapular fossa. Origin Subscapularis originates from (a) medial 2/3rd of the costal surface of the scapula and (b) tendinous intermuscular septa connected to the ridges on the bone. Insertion The fibres converge laterally into a broad tendon, which

Rotator Cuff Muscles

The rotator cuff is another name for a cluster of 4 different muscles and their tendons that play an important role in providing strength and stability in the shoulder movement. SITS muscles is an abbreviation for this group of muscles with reference to the first letter of

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