Subscapularis muscle
| Subscapularis muscle | |
|---|---|
| Subscapularis muscle (in red). Ribs are shown as semi-transparent. Anterior view. | |
| The subscapularis is difficult to see from the front (labeled middle right) | |
| Details | |
| Origin | Subscapular fossa | 
| Insertion | Lesser tubercle of humerus | 
| Artery | Subscapular artery | 
| Nerve | Upper subscapular nerve, lower subscapular nerve (C5, C6) | 
| Actions | Internally rotates and adducts humerus; stabilizes shoulder | 
| Identifiers | |
| Latin | musculus subscapularis | 
| TA98 | A04.6.02.012 | 
| TA2 | 2460 | 
| FMA | 13413 | 
| Anatomical terms of muscle | |
The subscapularis is a large triangular muscle which fills the subscapular fossa and inserts into the lesser tubercle of the humerus and the front of the capsule of the shoulder-joint.