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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

Erector Spinae Muscles

Among intrinsic back muscles the erector spinae remains the largest group. The muscles are located medially amid the spinous processes, posterolaterally towards the vertebral column as well as laterally towards the angles of the ribs. Inside the thoracic and lumbar regions thoracolumbar fascia as well as the

Psoas Major

Psoas Major is a long fusiform muscle stretching from the sides of lumbar vertebrae to the lesser trochanter of the femur. The enclosing of the Psoas major is a fascial sheath known as Psoas Sheath. Origin The origination of the psoas major  muscle takes place from 14

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

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