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| Subscapularis muscle | |
|---|---|
 Subscapularis muscle (in red). Ribs are shown as semi-transparent. | |
 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.