the major muscles of your arms biceps and triceps
They 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.riceps, 4.7 out of 5 based on 10 ratings. The triceps are located on the upper rear of the Humerus. The Triceps Brachii muscles are located on the back of the humerus and more commonly referred to as the triceps.