<prompt> The given instrument is used for harvesting the graft from healthy area in split skin thickness graft. What is this called?Humby knifeSilvers knifeDermatomeCatlin amputating knife  <response>: Ans. A. Humby knife This is a Humby skin-grafting knife, formerly owned by Sir Edward WearyDunlop, and made in 1950s.Silvers knifeBrown dermatome 