Imagine an artificial arm that moves naturally in response to your thoughts, that allows you to feel both the outside world and your own movements, and that is as strong and graceful as an intact, BIOLOGICAL LIMB. What are Bionic Limbs? Bionic limbs are artificial limbs that work by using signals from an individual’s muscles to seamlessly move. Some bionic limbs also rely on electrical signals from the brain and nerves in order to create the proper movements. These limbs, such as bionic hands, are either electronically or mechanically powered, with some bionic options relying on a combination of both. Whereas traditional prosthetic limbs require complete body power to work, bionic limbs provide much more support and capability by using both muscles and the brain to power them.