Triceps brachii muscle

The triceps brachii muscle (Latin for " three-headed arm muscle " or " three-headed arm extensors " ), often just called triceps, sitting on the back of the upper arm. He pulls the forearm bent backward until the olecranon ( elbow bump ) blocked further movement in the elbow joint.

The triceps muscle has three heads. The long head, long head, arises from the scapula below the glenoid cavity and is involved in the formation of the lateral and medial quadrangular space. The two remaining components ( medial head and lateral head ) originate at the back of the humerus. In the lower third of the upper arm they unite to form a common terminal tendon that attaches to the ulna. Some studies suggest that the insertion of the olecranon is done separately from each other by several tendons of the individual Trizepsköpfe. The upper third of the triceps is the deltoid muscle covers.

In some mammals (eg predators ) the muscle has a fourth head, caput intermedium.

Function

While the medial head and lateral head only to the elbow joint in the sense of stretching ( extension) act, the caput longum can also bring up the arm in the shoulder joint to the body ( adduction ) and move backwards ( retroversion ). In quadrupedal mammals, the long head acts as a powerful Schultergelenksbeuger.

Training

Although aesthetic reasons the upper arm workout biceps brachii is often the preferred, the triceps contributes significantly to a muscular impression. In addition, a balance between oppositely working muscles is always of importance to health. Exercises for building triceps muscles are push ups, bench press and dips.