| A | B |
|---|
| Supraspinatus | abducts the head of the humerus to 15 degrees |
| Infraspinatus | lateral rotation of the glenohumeral joint |
| Subscapularis | medial rotation of the glenohumeral joint |
| Teres minor | lateral rotation of the glenohumeral joint |
| Supraspinous fossa | origin of supraspinatus |
| Infraspinous fossa | origin of infraspinatus |
| Subscapular fossa | origin of subscapularis |
| Superior medial scapular border | origin of Teres minor |
| Greater tubercle | insertion of supraspinatus, infraspinatus and Teres minor |
| Lesser tubercle | insertion of subscapularis |
| synergists | infraspinatus, teres minor |
| Teres minor, subscapularis | antagonists |
| infraspinatus, subscapularis | antagonists |
| located superior to the spine of the scapula | supraspinous fossa |
| located inferior to the spine of the scapula | infraspinous fossa |
