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Latissimus dorsi muscle

In this article we will discuss about Latissimus dorsi muscle. So let’s get started.

Lattisimus dorsi muscle

It originates from the spinous process of T7-L5 vertebrae, thoracolumbar fascia, iliac crest, inferior 3 or 4 ribs and inferior angle of scapula and inserts into the floor of intertubercular sulcus of humerus. It’s artery supply is through the subscapular artery and is innervated through the thoracodorsal nerve. It’s chief action is adduction, extension and internal rotation at shoulder joint. Clinically latissimus dorsi muscle is used as a source of muscle for breast reconstruction. Stiffness or tight latissimus dorsi leads to chronic shoulder pain and is also used in cardiomyoplasty.

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