💪 Serratus Anterior
Brian Lee
May 21, 2025
Pending Review
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)
References