TRICEPS (BACK OF UPPER ARM)

This may be surprising to many beginners but the triceps make up more of the upper arm then the biceps do. The triceps are important to develop because they make up 2/3 of the upper arm.

In addition, a well-developed pair of triceps will contribute greatly to chest development since the share many of the same exercises. Some exercises for the triceps are the narrow grip bench press and triceps extensions.