In medicine, a prosthesis is an artificial extension to the body. Prostheses are typically used to replace parts lost by injury or missing from birth, supplement defective parts, allow transsexuals to change their outward physical gender, and in movie special effects.

Some types of prosthetics include:

  • artificial limbs
  • corrective lenses
  • cochlear implants
  • ocular prosthetics
  • facial prosthetics
  • somato prosthetics
  • surgical prosthetics
  • maxillo-facial prosthetics

See also: orthosis