BODYBUILDING SERIES: Building the Arm Muscles
April 2, 2009 by Tisha Tolar
Filed under Bodybuilding
The anatomy of the arm is made up of different sets of muscles. The muscles in the front of the arm are known as the 
biceps, the triceps are located in the back of the upper arm, the brachialis muscle that covers the elbow, and the brachioradialis, which is the muscle that covers the forearm. In building strength in the body, the arms are a very significant area that influences other strength-building routines. The arms also are a highly visible region of the body so toning and definition are important aspects in addition to strength. For the bodybuilder, large and well-defined biceps and triceps are a general characteristic.
The function of the biceps is to lift your arm, perform the curling motion, and to twist the wrist downward. The biceps brachii is a two-headed muscle which starts under the deltoid and ends just beneath the elbow. The tricep muscles comprise about two-thirds of the overall arm mass. The function of the tricep muscle is to work opposite of the biceps in order to straighten the arm and twist the wrist upward. The tricep muscle stretches along the back of the upper arm. There are three heads to the muscle, called the long head, the lateral head, and the medial head. The long head is attached to the inner part of your scapula, the lateral and medial heads are attached to the main upper arm bone, known as the humerus.
