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Teres major muscle

In this article we will discuss about Teres major muscle. So let’s get started.

Teres major muscle

It originates from the lower part of lateral border and posterior aspect of inferior angle of scapula and gets inserted into medial lip of intertubercular sulcus of humerus. It is innervated by lower subscapular nerve and its blood supply is through the subscapular and circumflex scapular artery. It’s chief action is extension, medial rotation and adduction of shoulder. Clinically isolated teres major injury occurs in athletes involved in overhead sport activities like baseball, swimming etc.

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