The video tutorial explores the anatomy and function of the triceps brachii, focusing on its three heads: long, lateral, and medial. It discusses their origins, the triceps tendon, and insertion on the olecranon process. The triceps' role in elbow and shoulder extension is highlighted, noting its crossing of two joints. The video clarifies that forearm position does not affect triceps function, and explains the muscle's innervation by the radial nerve. Additionally, the anconeus muscle's role as an elbow extensor is covered.

What are the implications of the triceps brachii inserting on the ulna rather than the radius?

Discuss how forearm position affects the function of the triceps brachii.

What is the role of the anconeus muscle in elbow extension?