Back عضلة صدرية صغيرة Arabic Малък гръден мускул Bulgarian Múscul pectoral menor Catalan Prsní svaly Czech Pectoralis minor Danish Musculus pectoralis minor German Músculo pectoral menor Spanish Bular-muskulu txiki Basque ماهیچه سینهای کوچک Persian Muscle petit pectoral French
| Pectoralis minor | |
|---|---|
 Pectoralis minor (shown in red). | |
 Pectoralis minor muscle (shown in red). The bone shown in blue is the shoulder blade. | |
| Details | |
| Origin | Third to fifth ribs, near the costochondral junction |
| Insertion | Medial border and superior surface of the coracoid process of the scapula |
| Artery | Pectoral branch of the thoracoacromial trunk |
| Nerve | Medial pectoral nerve (C8) |
| Actions | Stabilizes the scapula by drawing it inferiorly and anteriorly against the thoracic wall, raises ribs in inhalation |
| Identifiers | |
| Latin | musculus pectoralis minor |
| TA98 | A04.4.01.006 |
| TA2 | 2305 |
| FMA | 13109 |
| Anatomical terms of muscle | |
Pectoralis minor muscle (/ˌpɛktəˈrælɪs ˈmaɪnər/) is a thin, triangular muscle, situated at the upper part of the chest, beneath the pectoralis major in the human body. It arises from ribs III-V; it inserts onto the coracoid process of the scapula. It is innervated by the medial pectoral nerve. Its function is to stabilise the scapula by holding it fast in position against the chest wall.