prosthetics are new, advanced forms of prosthetics where electrodes are placed on the muscles above the limb. The electrodes will detect the muscle contractions and send electrical signals to the prosthetic to move the prosthetic. Hearing aids Four major components make up the hearing aid: the microphone, the amplifier, the receiver, and the battery. The microphone takes in outside sound, turns that sound to electrical signals, and sends those signals to the amplifier. The amplifier increases the sound and sends that sound to the receiver. The receiver changes the electrical signal back into sound and sends the sound into the ear. Hair cells in the ear will sense the vibrations from the sound, convert the vibrations into nerve signals, and send it to the brain so the sounds can become coherent to the person. The battery simply powers the hearing aid. Applications Cochlear Implant Cochlear implants are a type of hearing aid for those who are deaf. Cochlear implants send electrical signals straight to the auditory nerve, the nerve responsible for sound signals, instead of just sending the signals to the ear canal like normal hearing aids. Bone-anchored (Baha) hearing aids These hearing aids are also used for people with severe hearing loss. Baha hearing aids attach to the bones of the middle ear to create the sound vibrations in the skull and send those vibrations to the cochlea. Artificial sensing skin This artificial sensing skin detects any pressure put on it and is meant for people who have lost any sense of feeling on parts of their bodies, such as diabetics with peripheral neuropathy. Bionic eye The bionic eye is a bioelectronic implant that restores vision for people with blindness. Orthopedic bionics Orthopedic bionics consist of advanced bionic limbs that use a person's neuromuscular system to control the bionic limb. Endoscopic robotics These robotics can remove a polyp during a colonoscopy. See also Android (robot) Bio-inspired robotics Molecular machine#Biological Biological devices Biomechatronics Biomimetics Cultured neural networks Cyborg Cylon (reimagining) Nanobot Nanomedicine Plantoid Remote control animal Replicant Roborat Technorganic References External links The BioRobotics Lab. Robotics Institute, Carnegie Mellon University * Bioroïdes - A timeline of the popularization of the idea (in French) Harvard BioRobotics Laboratory, Harvard University Locomotion in Mechanical and Biological Systems (LIMBS) Laboratory, Johns Hopkins University BioRobotics Lab in Korea Laboratory of Biomedical Robotics and Biomicrosystems, Italy Tiny backpacks for cells (MIT News) Biologically Inspired Robotics Lab,