The triceps brachii is a major muscle of the upper arm in the human body. The triceps run along the humerus (the main bone of the upper arm) between the shoulder and the elbow. Along with the biceps, it enables extension and retraction of the forearm.
Similarly one may ask, why is it called triceps?
The triceps brachii is a muscle located at the back of the humerus (upper arm) between the shoulder and the elbow. This muscle gets its name because it has three heads or points of origin, one on the scapula and two on the humerus.
What is the origin of the triceps?
The lateral head originates from the back surface of the humerus, just above the radial groove. The long head originates from the infraglenoid tubercle of the scapula. The long head of the triceps brachii originates from the infraglenoid tubercle of the scapula.
What is the function of your triceps?
Function. The triceps is an extensor muscle of the elbow joint and an antagonist of the biceps and brachialis muscles. It can also fixate the elbow joint when the forearm and hand are used for fine movements, e.g., when writing.