Drawing of the second-generation neuroprostheric system. The internal components include the IST-12, 12 stimulating electrodes (not all shown), and 2 recording electrodes. The external components include the control unit and the transmit/receive coil. This system provides grasp/release, forearm pronation, and elbow extension with myoelectric control for improved function in the tetraplegic spinal cord-injured individual, MHS, myoelectric signal.