Various types of prosthetic arms are covered in this final paper, with a greater emphasis on electric prosthetic arms, particularly those that are controlled by the user with different control signals. By the elementary division they are divided into cosmetic, mechanical (body-powered) and electric. Furthermore, electric prosthetic arms are divided into pre-programmed (not directly controllable), directly controlled by EMG or EEG signals (with the basics of working and components explained for such types of signals), hybrid and virtual (simulated) prosthetic arms. A large number of different grip patterns of electric prosthetic arms and the ways of their selection, activation and utilization is analyzed within the third chapter. At the end of this final paper is the proposal for a realization of a prosthetic arm system, with the advantages and disadvantages of all relevant aforementioned divisions listed and explained.