The Triceps Brachii also assists Latissimus Dorsi in extending the shoulder joint. It contracts strongly during the up phase of a push-up, to straighten the arm.
- Origin: Long head – The lower part of the glenoid cavity of the scapula. Lateral head – Upper half of the posterior surface of the humerus. Medial head – Lower 2/3 of the posterior surface of the humerus
- Insertion: Olecranon process of the ulna
- Actions: Elbow extension
- Innervation: Radial nerve
- Daily uses: Pushing a door closed
- Example strengthening exercises: Tricep extension. Overhead tricep extension. Tricep dips
- Example stretches: Tricep stretch