The Pectoralis Minor muscle is the smallest of the two pectoral (chest) muscles. It works together with Serratus anterior which protracts and rotates the scapula upwards. When the two work together, pure protraction (without rotation) is produced.
- Outer surface of ribs 3-5 Insertion
- Coracoid process of the scapula
- Scapula protraction
- Rotation of the scapula downwards
- Medial pectoral nerve
- Pushing a door open