The arm extends from the shoulder to the wrist, including the upper arm and forearm. Different muscles may work together in intricate ways to help the arm, wrists, fingers, and hands function. Knowing ...

Bionic arms used to cost more than a new car. Today, that's no longer the case. Unlimited Tomorrow is making 3D-printed prosthetics available for under $8,000 and doing it without sacrificing quality, ...

The Lying Triceps Extension helps to firm and strengthen the muscles on the back of the upper arm. Any movement that involves straightening the arm will involve the triceps, which consists of three ...