Subscapularis | ARM MOVERS | Rotator Cuff

              The subscapularis is a large triangular muscle. SupraspinatusInfraspinatusSubscapularis, and Teres Minor together This Four Muscle work as rotatory to the Humerus. So, also known as Rotator Cuff.


The subscapularis is originated from subscapular fossa of the scapula.


The subscapularis is inserted at lesser tubercle of the humerus.


  1. The subscapularis is chief medial rotator of the humerus, assisted by pectoralis major.
  2. The subscapularis is helped to hold the head of a humerus in glenoid cavity, stabilizes the shoulder.


The subscapularis is supplied by the Subcapular nerve.

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