A muscle that has three origins is called a
The Triceps Brachii muscles are located on the back of the humerus and more commonly referred to as the triceps. They derive their name from a Latin phrase meaning âthree headed arm muscleâ, due to the fact that the triceps muscles have three muscle heads and therefore have three separate origin attachment points.These three heads are called the Lateral, Medial and Long and they connect the Humerus, Scapula to the Ulna.hey are the largest muscles in the upper arms. As with the Bicep muscle which has two heads and therefore two origin points, the Triceps muscles which has three heads has three different origin points. These origin attachment points are as follows; 1.