Table of Contents
Summary
- Origins
- External surfaces of the upper 8–9 ribs
- Insertions
- Anterior (costal) surface of medial border of 🦴 scapula
- Actions
- Protracts (abducts) the scapula
- Upward rotation of the scapula
- Holds scapula against thoracic wall
- Accessory muscle of inspiration (elevates ribs)
- Upward rotation of the scapula
References
- Wikipedia
- 📕
Gf
- 152 Insertion and origin
- 153 Muscle cross-section; shows the relationship between serratus anterior and subscapularis.