Triceps brachii, aided by anconeus
Muscles within the brachium are responsible for the extension of the elbow. These muscles also work for the flexing of the arm as well.
The muscle has to have origin and insertion below the elbow. There is only one such muscle. It is called as pronator quadtatus.
Extension of the arm at the shoulder is due to:Latissimus DorsiPosterior fibers of the DeltoidTeres MajorExtension of the elbow joint is almost entirely due to triceps brachi
The triceps (all 3 heads) are fulfilling the role of agonist or prime mover during extension about the elbow. The anconeus muscle also acts in synergy with the triceps to contribute to elbow extension.
FLEXORSBiceps brachia- Primarily forearm supination, but also functions in elbow flexion, shoulder flexion, and shoulder adductionChoracobrachialis- Shoulder flexion, shoulder adductionBrachialis- Elbow flexionEXTENSORSTriceps Brachii- Powers elbow extension
Extension of the forearm at the elbow joint is achieved almost entirely by the triceps brachii but extension of the arm, which actually takes place at the shoulder joint, is achieved by muscles on the back, such as the latissimus dorsi.
Tricep brachii is responsible for extension (straightening) of the arm at the elbow. There are 3 heads of the Tricep; the long, lateral and medial heads. The Tricep is an antagonist of the bicep and brachialis muscles of the upper arm, which both assist in flexion at the elbow joint.
The muscles above the elbow are responsible for bending and straightening the arm.
Flexion and extension of the forearm.
Triceps, Biceps, Brachialis and Brachioradialis are the main muscles. Link on elbow muscles (anatomy) below will help
Elbow Eyes Elbow Extension Followthrough...its a basketball mnemonic....
The quadriceps muscles are primarily involved in knee extension.