Structures

 

  • Triceps Brachii

 

MuscleActionOriginInsertionInnervationBlood supply
Triceps Brachii- Extension of elbow
- Extension of shoulder
- Long head: Infraglenoid tubercle of scapula
- Medial head: Distal half of posterior humerus
- Lateral head: Proximal half of posterior humerus
- Olecranon process of Ulna- Radial nerve; C7, 8- Brachial artery